497

Rule 497 Document

On behalf of PIMCO Government Money Market Fund, PIMCO Money Market Fund, PIMCO Treasury Money Market Fund, and PIMCO Inflation Response Multi-Asset Fund (the “Funds”), each a series of PIMCO Funds, and pursuant to Rule 497(e) under the Securities Act of 1933, as amended, attached for filing are exhibits containing information in interactive data format. The interactive data files included as an exhibit to this filing relate to the prospectus supplements filed with the Securities and Exchange Commission on behalf of the Funds pursuant to Rule 497(e) on May 22, 2013 (Accession No. 0001193125-13-231852), which are incorporated by reference into this Rule 497 Document.

Exhibit List

EX-101.INS      XBRL Instance Document

EX-101.SCH     XBRL Taxonomy Extension Schema Document

EX-101.DEF     XBRL Taxonomy Extension Definition Linkbase Document

EX-101.LAB      XBRL Taxonomy Extension Labels Linkbase Document

EX-101.PRE     XBRL Taxonomy Extension Presentation Linkbase Document

XML

Expense Example ((Retail), USD $)	0 Months Ended
	May 23, 2013
(PIMCO Government Money Market Fund) | Class A
Expense Example:
Expense Example, with Redemption, 1 Year	$ 34
Expense Example, with Redemption, 3 Years	106
Expense Example, with Redemption, 5 Years	185
Expense Example, with Redemption, 10 Years	418
(PIMCO Government Money Market Fund) | Class C
Expense Example:
Expense Example, with Redemption, 1 Year	34
Expense Example, with Redemption, 3 Years	106
Expense Example, with Redemption, 5 Years	185
Expense Example, with Redemption, 10 Years	418
(PIMCO Government Money Market Fund) | Class R
Expense Example:
Expense Example, with Redemption, 1 Year	34
Expense Example, with Redemption, 3 Years	106
Expense Example, with Redemption, 5 Years	185
Expense Example, with Redemption, 10 Years	418
(PIMCO Money Market Fund) | Class A
Expense Example:
Expense Example, with Redemption, 1 Year	48
Expense Example, with Redemption, 3 Years	151
Expense Example, with Redemption, 5 Years	263
Expense Example, with Redemption, 10 Years	591
(PIMCO Money Market Fund) | Class B
Expense Example:
Expense Example, with Redemption, 1 Year	48
Expense Example, with Redemption, 3 Years	151
Expense Example, with Redemption, 5 Years	263
Expense Example, with Redemption, 10 Years	591
(PIMCO Money Market Fund) | Class C
Expense Example:
Expense Example, with Redemption, 1 Year	48
Expense Example, with Redemption, 3 Years	151
Expense Example, with Redemption, 5 Years	263
Expense Example, with Redemption, 10 Years	591
(PIMCO Treasury Money Market Fund) | Class A
Expense Example:
Expense Example, with Redemption, 1 Year	34
Expense Example, with Redemption, 3 Years	106
(PIMCO Treasury Money Market Fund) | Class C
Expense Example:
Expense Example, with Redemption, 1 Year	34
Expense Example, with Redemption, 3 Years	106
(PIMCO Treasury Money Market Fund) | Class R
Expense Example:
Expense Example, with Redemption, 1 Year	34
Expense Example, with Redemption, 3 Years	$ 106

XML

(PIMCO Government Money Market Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Bond Funds Institutional Class, Class M, Class P, Administrative Class and Class D Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Government Money Market Fund, PIMCO Money Market Fund and PIMCO Treasury Money Market Fund

The following changes are effective July 1, 2013.

The PIMCO Government Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Institutional) (PIMCO Government Money Market Fund)		Class M	Class P	Administrative Class	Class D
Management Fees		0.18%	0.28%	0.18%	0.18%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.18%	0.28%	0.18%	0.18%

The PIMCO Government Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example, No Redemption (PIMCO Government Money Market Fund) (Institutional) (USD $)	1 Year	3 Years	5 Years	10 Years
Class M	18	58	101	230
Class P	29	90	157	356
Administrative Class	18	58	101	230
Class D	18	58	101	230

(PIMCO Money Market Fund)

The PIMCO Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Institutional) (PIMCO Money Market Fund)		Institutional Class	Class P	Administrative Class
Management Fees		0.32%	0.42%	0.32%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.32%	0.42%	0.32%

The PIMCO Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example, No Redemption (PIMCO Money Market Fund) (Institutional) (USD $)	1 Year	3 Years	5 Years	10 Years
Institutional Class	33	103	180	406
Class P	43	135	235	530
Administrative Class	33	103	180	406

(PIMCO Treasury Money Market Fund)

The PIMCO Treasury Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Institutional) (PIMCO Treasury Money Market Fund)		Class M	Class P	Administrative Class	Class D
Management Fees		0.18%	0.28%	0.18%	0.18%
Distribution and/or Service (12b-1) Fees
Other Expenses	[1]	0.03%	0.03%	0.03%	0.03%
Total Annual Fund Operating Expenses		0.21%	0.31%	0.21%	0.21%
Fee Waiver and/or Expense Reimbursement	[2]	(0.03%)	(0.03%)	(0.03%)	(0.03%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	[3]	0.18%	0.28%	0.18%	0.18%

The PIMCO Treasury Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example, No Redemption (PIMCO Treasury Money Market Fund) (Institutional) (USD $)	1 Year	3 Years
Class M	18	58
Class P	29	90
Administrative Class	18	58
Class D	18	58

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] "Other Expenses" reflect estimated organizational expenses for the Fund's first fiscal year.

[2] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class M, Class P, Administrative Class and Class D shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

[3] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

XML

Annual Fund Operating Expenses	0 Months Ended
	May 23, 2013
(Institutional) | (PIMCO Government Money Market Fund) | Administrative Class
Operating Expenses:
Management Fees	0.18%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.18%	[1]
(Institutional) | (PIMCO Government Money Market Fund) | Class D
Operating Expenses:
Management Fees	0.18%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.18%	[1]
(Institutional) | (PIMCO Government Money Market Fund) | Class M
Operating Expenses:
Management Fees	0.18%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.18%	[1]
(Institutional) | (PIMCO Government Money Market Fund) | Class P
Operating Expenses:
Management Fees	0.28%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.28%	[1]
(Institutional) | (PIMCO Money Market Fund) | Administrative Class
Operating Expenses:
Management Fees	0.32%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.32%	[1]
(Institutional) | (PIMCO Money Market Fund) | Institutional Class
Operating Expenses:
Management Fees	0.32%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.32%	[1]
(Institutional) | (PIMCO Money Market Fund) | Class P
Operating Expenses:
Management Fees	0.42%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.42%	[1]
(Institutional) | (PIMCO Treasury Money Market Fund) | Administrative Class
Operating Expenses:
Management Fees	0.18%
Distribution and/or Service (12b-1) Fees
Other Expenses	0.03%	[2]
Total Annual Fund Operating Expenses	0.21%
Fee Waiver and/or Expense Reimbursement	(0.03%)	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.18%	[1]
(Institutional) | (PIMCO Treasury Money Market Fund) | Class D
Operating Expenses:
Management Fees	0.18%
Distribution and/or Service (12b-1) Fees
Other Expenses	0.03%	[2]
Total Annual Fund Operating Expenses	0.21%
Fee Waiver and/or Expense Reimbursement	(0.03%)	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.18%	[1]
(Institutional) | (PIMCO Treasury Money Market Fund) | Class M
Operating Expenses:
Management Fees	0.18%
Distribution and/or Service (12b-1) Fees
Other Expenses	0.03%	[2]
Total Annual Fund Operating Expenses	0.21%
Fee Waiver and/or Expense Reimbursement	(0.03%)	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.18%	[1]
(Institutional) | (PIMCO Treasury Money Market Fund) | Class P
Operating Expenses:
Management Fees	0.28%
Distribution and/or Service (12b-1) Fees
Other Expenses	0.03%	[2]
Total Annual Fund Operating Expenses	0.31%
Fee Waiver and/or Expense Reimbursement	(0.03%)	[3]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.28%	[1]
(Retail) | (PIMCO Government Money Market Fund) | Class A
Operating Expenses:
Management Fees	0.33%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.33%	[1]
(Retail) | (PIMCO Government Money Market Fund) | Class C
Operating Expenses:
Management Fees	0.33%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.33%	[1]
(Retail) | (PIMCO Government Money Market Fund) | Class R
Operating Expenses:
Management Fees	0.33%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.33%	[1]
(Retail) | (PIMCO Money Market Fund) | Class A
Operating Expenses:
Management Fees	0.47%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.47%	[1]
(Retail) | (PIMCO Money Market Fund) | Class B
Operating Expenses:
Management Fees	0.47%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.47%	[1]
(Retail) | (PIMCO Money Market Fund) | Class C
Operating Expenses:
Management Fees	0.47%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	0.47%	[1]
(Retail) | (PIMCO Treasury Money Market Fund) | Class A
Operating Expenses:
Management Fees	0.33%
Distribution and/or Service (12b-1) Fees
Other Expenses	0.03%	[2]
Total Annual Fund Operating Expenses	0.36%
Fee Waiver and/or Expense Reimbursement	(0.03%)	[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.33%	[1]
(Retail) | (PIMCO Treasury Money Market Fund) | Class C
Operating Expenses:
Management Fees	0.33%
Distribution and/or Service (12b-1) Fees
Other Expenses	0.03%	[2]
Total Annual Fund Operating Expenses	0.36%
Fee Waiver and/or Expense Reimbursement	(0.03%)	[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.33%	[1]
(Retail) | (PIMCO Treasury Money Market Fund) | Class R
Operating Expenses:
Management Fees	0.33%
Distribution and/or Service (12b-1) Fees
Other Expenses	0.03%	[2]
Total Annual Fund Operating Expenses	0.36%
Fee Waiver and/or Expense Reimbursement	(0.03%)	[4]
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	0.33%	[1]

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[2] "Other Expenses" reflect estimated organizational expenses for the Fund's first fiscal year.

[3] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class M, Class P, Administrative Class and Class D shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

[4] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class A, Class C and Class R shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

XML

(PIMCO Government Money Market Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Bond Funds Class A, Class B, Class C and Class R Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Government Money Market Fund, PIMCO Money Market Fund and PIMCO Treasury Money Market Fund

The following changes are effective July 1, 2013.

The PIMCO Government Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Retail) (PIMCO Government Money Market Fund)		Class A	Class C	Class R
Management Fees		0.33%	0.33%	0.33%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.33%	0.33%	0.33%

The PIMCO Government Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

If you redeem your shares at the end of each period:

Expense Example (PIMCO Government Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	34	106	185	418
Class C	34	106	185	418
Class R	34	106	185	418

If you do not redeem your shares:

Expense Example, No Redemption (PIMCO Government Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	34	106	185	418
Class C	34	106	185	418
Class R	34	106	185	418

(PIMCO Money Market Fund)

The PIMCO Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Retail) (PIMCO Money Market Fund)		Class A	Class B	Class C
Management Fees		0.47%	0.47%	0.47%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.47%	0.47%	0.47%

The PIMCO Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

If you redeem your shares at the end of each period:

Expense Example (PIMCO Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	48	151	263	591
Class B	48	151	263	591
Class C	48	151	263	591

If you do not redeem your shares:

Expense Example, No Redemption (PIMCO Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	48	151	263	591
Class B	48	151	263	591
Class C	48	151	263	591

(PIMCO Treasury Money Market Fund)

The PIMCO Treasury Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Retail) (PIMCO Treasury Money Market Fund)		Class A	Class C	Class R
Management Fees		0.33%	0.33%	0.33%
Distribution and/or Service (12b-1) Fees
Other Expenses	[1]	0.03%	0.03%	0.03%
Total Annual Fund Operating Expenses		0.36%	0.36%	0.36%
Fee Waiver and/or Expense Reimbursement	[2]	(0.03%)	(0.03%)	(0.03%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	[3]	0.33%	0.33%	0.33%

The PIMCO Treasury Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

If you redeem your shares at the end of each period:

Expense Example (PIMCO Treasury Money Market Fund) (Retail) (USD $)	1 Year	3 Years
Class A	34	106
Class C	34	106
Class R	34	106

If you do not redeem your shares:

Expense Example, No Redemption (PIMCO Treasury Money Market Fund) (Retail) (USD $)	1 Year	3 Years
Class A	34	106
Class C	34	106
Class R	34	106

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] "Other Expenses" reflect estimated organizational expenses for the Fund's first fiscal year.

[2] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class A, Class C and Class R shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

[3] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

XML

(Institutional) | (PIMCO Government Money Market Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Bond Funds Institutional Class, Class M, Class P, Administrative Class and Class D Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Government Money Market Fund, PIMCO Money Market Fund and PIMCO Treasury Money Market Fund

The following changes are effective July 1, 2013.

The PIMCO Government Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Institutional) (PIMCO Government Money Market Fund)		Class M	Class P	Administrative Class	Class D
Management Fees		0.18%	0.28%	0.18%	0.18%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.18%	0.28%	0.18%	0.18%

The PIMCO Government Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example, No Redemption (PIMCO Government Money Market Fund) (Institutional) (USD $)	1 Year	3 Years	5 Years	10 Years
Class M	18	58	101	230
Class P	29	90	157	356
Administrative Class	18	58	101	230
Class D	18	58	101	230

(Institutional) | (PIMCO Money Market Fund)

The PIMCO Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Institutional) (PIMCO Money Market Fund)		Institutional Class	Class P	Administrative Class
Management Fees		0.32%	0.42%	0.32%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.32%	0.42%	0.32%

The PIMCO Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example, No Redemption (PIMCO Money Market Fund) (Institutional) (USD $)	1 Year	3 Years	5 Years	10 Years
Institutional Class	33	103	180	406
Class P	43	135	235	530
Administrative Class	33	103	180	406

(Institutional) | (PIMCO Treasury Money Market Fund)

The PIMCO Treasury Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Institutional) (PIMCO Treasury Money Market Fund)		Class M	Class P	Administrative Class	Class D
Management Fees		0.18%	0.28%	0.18%	0.18%
Distribution and/or Service (12b-1) Fees
Other Expenses	[1]	0.03%	0.03%	0.03%	0.03%
Total Annual Fund Operating Expenses		0.21%	0.31%	0.21%	0.21%
Fee Waiver and/or Expense Reimbursement	[2]	(0.03%)	(0.03%)	(0.03%)	(0.03%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	[3]	0.18%	0.28%	0.18%	0.18%

The PIMCO Treasury Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example, No Redemption (PIMCO Treasury Money Market Fund) (Institutional) (USD $)	1 Year	3 Years
Class M	18	58
Class P	29	90
Administrative Class	18	58
Class D	18	58

(Retail) | (PIMCO Government Money Market Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Bond Funds Class A, Class B, Class C and Class R Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Government Money Market Fund, PIMCO Money Market Fund and PIMCO Treasury Money Market Fund

The following changes are effective July 1, 2013.

The PIMCO Government Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Retail) (PIMCO Government Money Market Fund)		Class A	Class C	Class R
Management Fees		0.33%	0.33%	0.33%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.33%	0.33%	0.33%

The PIMCO Government Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

If you redeem your shares at the end of each period:

Expense Example (PIMCO Government Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	34	106	185	418
Class C	34	106	185	418
Class R	34	106	185	418

If you do not redeem your shares:

Expense Example, No Redemption (PIMCO Government Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	34	106	185	418
Class C	34	106	185	418
Class R	34	106	185	418

(Retail) | (PIMCO Money Market Fund)

The PIMCO Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Retail) (PIMCO Money Market Fund)		Class A	Class B	Class C
Management Fees		0.47%	0.47%	0.47%
Distribution and/or Service (12b-1) Fees
Total Annual Fund Operating Expenses	[1]	0.47%	0.47%	0.47%

The PIMCO Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

If you redeem your shares at the end of each period:

Expense Example (PIMCO Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	48	151	263	591
Class B	48	151	263	591
Class C	48	151	263	591

If you do not redeem your shares:

Expense Example, No Redemption (PIMCO Money Market Fund) (Retail) (USD $)	1 Year	3 Years	5 Years	10 Years
Class A	48	151	263	591
Class B	48	151	263	591
Class C	48	151	263	591

(Retail) | (PIMCO Treasury Money Market Fund)

The PIMCO Treasury Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Annual Fund Operating Expenses (Retail) (PIMCO Treasury Money Market Fund)		Class A	Class C	Class R
Management Fees		0.33%	0.33%	0.33%
Distribution and/or Service (12b-1) Fees
Other Expenses	[1]	0.03%	0.03%	0.03%
Total Annual Fund Operating Expenses		0.36%	0.36%	0.36%
Fee Waiver and/or Expense Reimbursement	[2]	(0.03%)	(0.03%)	(0.03%)
Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement	[3]	0.33%	0.33%	0.33%

The PIMCO Treasury Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

If you redeem your shares at the end of each period:

Expense Example (PIMCO Treasury Money Market Fund) (Retail) (USD $)	1 Year	3 Years
Class A	34	106
Class C	34	106
Class R	34	106

If you do not redeem your shares:

Expense Example, No Redemption (PIMCO Treasury Money Market Fund) (Retail) (USD $)	1 Year	3 Years
Class A	34	106
Class C	34	106
Class R	34	106

(Institutional) | (PIMCO Inflation Response Multi-Asset Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Strategic Markets Institutional Class, Class P, Administrative Class and Class D Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Inflation Response Multi-Asset Fund (the "Fund")

The following changes are effective immediately.

The first sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Fund may invest up to 25% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of Real Estate Investment Trusts ("REITs") and/or investment in the Domestic Equity-Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund, and in other equity-related Acquired Funds).

The fourth sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments.

(Retail) | (PIMCO Inflation Response Multi-Asset Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Strategic Markets Class A, Class B, Class C and Class R Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Inflation Response Multi-Asset Fund (the "Fund")

The following changes are effective immediately.

The first sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Fund may invest up to 25% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of Real Estate Investment Trusts ("REITs") and/or investment in the Domestic Equity-Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund, and in other equity-related Acquired Funds).

The fourth sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments.

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] "Other Expenses" reflect estimated organizational expenses for the Fund's first fiscal year.

[2] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class M, Class P, Administrative Class and Class D shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

[3] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[1] "Other Expenses" reflect estimated organizational expenses for the Fund's first fiscal year.

[2] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class A, Class C and Class R shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

[3] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

XML

(Institutional) | (PIMCO Inflation Response Multi-Asset Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Strategic Markets Institutional Class, Class P, Administrative Class and Class D Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Inflation Response Multi-Asset Fund (the "Fund")

The following changes are effective immediately.

The first sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Fund may invest up to 25% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of Real Estate Investment Trusts ("REITs") and/or investment in the Domestic Equity-Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund, and in other equity-related Acquired Funds).

The fourth sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments.

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Document Type

dei_DocumentType

Other

Document Period End Date

dei_DocumentPeriodEndDate

Mar. 31, 2012

Registrant Name

dei_EntityRegistrantName

PIMCO FUNDS

Central Index Key

dei_EntityCentralIndexKey

0000810893

Amendment Flag

dei_AmendmentFlag

false

Document Creation Date

dei_DocumentCreationDate

May 22, 2013

Document Effective Date

dei_DocumentEffectiveDate

May 23, 2013

Prospectus Date

rr_ProspectusDate

May 23, 2013

(Institutional) | (PIMCO Government Money Market Fund)

Risk/Return:

rr_RiskReturnAbstract

Supplement TextBlock

pimcofunds_SupplementTextBlock

PIMCO Funds

Supplement Dated May 23, 2013 to the

Bond Funds Institutional Class, Class M, Class P, Administrative Class and Class D Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Government Money Market Fund, PIMCO Money Market Fund and PIMCO Treasury Money Market Fund

The following changes are effective July 1, 2013.

Operating Expese Supplement [Text Block]

pimcofunds_SupplementTextBlock01

The PIMCO Government Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expese Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock02

The PIMCO Government Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

(Institutional) | (PIMCO Government Money Market Fund) | Class M

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.18%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.18%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

18

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

58

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

101

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

230

(Institutional) | (PIMCO Government Money Market Fund) | Class P

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.28%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.28%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

29

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

90

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

157

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

356

(Institutional) | (PIMCO Government Money Market Fund) | Administrative Class

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.18%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.18%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

18

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

58

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

101

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

230

(Institutional) | (PIMCO Government Money Market Fund) | Class D

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.18%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.18%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

18

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

58

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

101

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

230

(Institutional) | (PIMCO Money Market Fund)

Risk/Return:

rr_RiskReturnAbstract

Operating Expese Supplement [Text Block]

pimcofunds_SupplementTextBlock01

The PIMCO Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expese Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock02

The PIMCO Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

(Institutional) | (PIMCO Money Market Fund) | Institutional Class

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.32%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.32%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

33

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

103

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

180

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

406

(Institutional) | (PIMCO Money Market Fund) | Class P

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.42%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.42%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

43

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

135

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

235

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

530

(Institutional) | (PIMCO Money Market Fund) | Administrative Class

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.32%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.32%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

33

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

103

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

180

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

406

(Institutional) | (PIMCO Treasury Money Market Fund)

Risk/Return:

rr_RiskReturnAbstract

Operating Expese Supplement [Text Block]

pimcofunds_SupplementTextBlock01

The PIMCO Treasury Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2013-07-31

Expese Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock02

The PIMCO Treasury Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

(Institutional) | (PIMCO Treasury Money Market Fund) | Class M

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.18%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Other Expenses

rr_OtherExpensesOverAssets

0.03%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.21%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.18%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

18

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

58

(Institutional) | (PIMCO Treasury Money Market Fund) | Class P

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.28%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Other Expenses

rr_OtherExpensesOverAssets

0.03%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.31%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.28%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

29

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

90

(Institutional) | (PIMCO Treasury Money Market Fund) | Administrative Class

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.18%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Other Expenses

rr_OtherExpensesOverAssets

0.03%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.21%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.18%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

18

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

58

(Institutional) | (PIMCO Treasury Money Market Fund) | Class D

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.18%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Other Expenses

rr_OtherExpensesOverAssets

0.03%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.21%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[3]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.18%

^[2]

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

18

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

58

(Retail) | (PIMCO Government Money Market Fund)

Risk/Return:

rr_RiskReturnAbstract

Supplement TextBlock

pimcofunds_SupplementTextBlock

PIMCO Funds

Supplement Dated May 23, 2013 to the

Bond Funds Class A, Class B, Class C and Class R Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Government Money Market Fund, PIMCO Money Market Fund and PIMCO Treasury Money Market Fund

The following changes are effective July 1, 2013.

Operating Expese Supplement [Text Block]

pimcofunds_SupplementTextBlock01

The PIMCO Government Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expese Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock02

The PIMCO Government Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

(Retail) | (PIMCO Government Money Market Fund) | Class A

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.33%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.33%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

34

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

106

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

185

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

418

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

34

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

106

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

185

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

418

(Retail) | (PIMCO Government Money Market Fund) | Class C

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.33%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.33%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

34

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

106

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

185

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

418

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

34

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

106

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

185

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

418

(Retail) | (PIMCO Government Money Market Fund) | Class R

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.33%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.33%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

34

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

106

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

185

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

418

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

34

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

106

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

185

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

418

(Retail) | (PIMCO Money Market Fund)

Risk/Return:

rr_RiskReturnAbstract

Operating Expese Supplement [Text Block]

pimcofunds_SupplementTextBlock01

The PIMCO Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expese Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock02

The PIMCO Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

(Retail) | (PIMCO Money Market Fund) | Class A

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.47%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.47%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

48

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

151

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

263

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

591

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

48

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

151

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

263

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

591

(Retail) | (PIMCO Money Market Fund) | Class B

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.47%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.47%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

48

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

151

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

263

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

591

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

48

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

151

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

263

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

591

(Retail) | (PIMCO Money Market Fund) | Class C

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.47%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.47%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

48

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

151

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

263

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

591

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

48

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

151

Expense Example, No Redemption, 5 Years

rr_ExpenseExampleNoRedemptionYear05

263

Expense Example, No Redemption, 10 Years

rr_ExpenseExampleNoRedemptionYear10

591

(Retail) | (PIMCO Treasury Money Market Fund)

Risk/Return:

rr_RiskReturnAbstract

Operating Expese Supplement [Text Block]

pimcofunds_SupplementTextBlock01

The PIMCO Treasury Money Market Fund's fee table in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Fee Waiver or Reimbursement over Assets, Date of Termination

rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination

2013-07-31

Expese Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock02

The PIMCO Treasury Money Market Fund's Example in the Fund Summary section of the Prospectus is deleted in its entirety and replaced with the following:

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

If you redeem your shares at the end of each period:

Expense Example, No Redemption, By Year, Caption [Text]

rr_ExpenseExampleNoRedemptionByYearCaption

If you do not redeem your shares:

(Retail) | (PIMCO Treasury Money Market Fund) | Class A

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.33%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Other Expenses

rr_OtherExpensesOverAssets

0.03%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.36%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[4]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.33%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

34

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

106

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

34

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

106

(Retail) | (PIMCO Treasury Money Market Fund) | Class C

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.33%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Other Expenses

rr_OtherExpensesOverAssets

0.03%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.36%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[4]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.33%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

34

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

106

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

34

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

106

(Retail) | (PIMCO Treasury Money Market Fund) | Class R

Risk/Return:

rr_RiskReturnAbstract

Management Fees

rr_ManagementFeesOverAssets

0.33%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

Other Expenses

rr_OtherExpensesOverAssets

0.03%

^[1]

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

0.36%

Fee Waiver and/or Expense Reimbursement

rr_FeeWaiverOrReimbursementOverAssets

(0.03%)

^[4]

Total Annual Fund Operating Expenses After Fee Waiver and/or Expense Reimbursement

rr_NetExpensesOverAssets

0.33%

^[2]

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

34

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

106

Expense Example, No Redemption, 1 Year

rr_ExpenseExampleNoRedemptionYear01

34

Expense Example, No Redemption, 3 Years

rr_ExpenseExampleNoRedemptionYear03

106

(Institutional) | (PIMCO Inflation Response Multi-Asset Fund)

Risk/Return:

rr_RiskReturnAbstract

Supplement TextBlock

pimcofunds_SupplementTextBlock

PIMCO Funds

Supplement Dated May 23, 2013 to the

Strategic Markets Institutional Class, Class P, Administrative Class and Class D Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Inflation Response Multi-Asset Fund (the "Fund")

The following changes are effective immediately.

Strategy Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock04

The first sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund may invest up to 25% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of Real Estate Investment Trusts ("REITs") and/or investment in the Domestic Equity-Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund, and in other equity-related Acquired Funds).

Strategy Heading Supplement - [Text Block]

pimcofunds_SupplementTextBlock05

The fourth sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

Strategy Narrative Supplement - [Text Block]

pimcofunds_SupplementTextBlock06

The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments.

(Retail) | (PIMCO Inflation Response Multi-Asset Fund)

Risk/Return:

rr_RiskReturnAbstract

Supplement TextBlock

pimcofunds_SupplementTextBlock

PIMCO Funds

Supplement Dated May 23, 2013 to the

Strategic Markets Class A, Class B, Class C and Class R Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Inflation Response Multi-Asset Fund (the "Fund")

The following changes are effective immediately.

Strategy Heading Supplement [Text Block]

pimcofunds_SupplementTextBlock04

The first sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund may invest up to 25% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of Real Estate Investment Trusts ("REITs") and/or investment in the Domestic Equity-Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund, and in other equity-related Acquired Funds).

Strategy Heading Supplement - [Text Block]

pimcofunds_SupplementTextBlock05

The fourth sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

Strategy Narrative Supplement - [Text Block]

pimcofunds_SupplementTextBlock06

The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments.

[1] "Other Expenses" reflect estimated organizational expenses for the Fund's first fiscal year.

[2] To maintain certain net yields for the Fund, PIMCO or its affiliates may temporarily and voluntarily waive, reduce or reimburse all or any portion of the Fund's fees and expenses. Such waivers, if any, are not reflected in this table. See "Management of the Funds—Temporary Fee Waivers, Reductions and Reimbursements" for additional information.

[3] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class M, Class P, Administrative Class and Class D shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

[4] Pacific Investment Management Company LLC ("PIMCO") has contractually agreed, through July 31, 2013, to waive its supervisory and administrative fee, or reimburse the Fund, to the extent that organizational expenses and pro rata Trustees' fees exceed 0.0049% of the Fund's average net assets attributable to Class A, Class C and Class R shares, respectively (the "Expense Limit"). Under the Expense Limitation Agreement, which renews annually for a full year unless terminated by PIMCO upon at least 30 days' notice prior to the end of the contract term, PIMCO may recoup these waivers and reimbursements in future periods, not exceeding three years, provided organizational expenses and pro rata Trustees' fees, plus such recoupment, do not exceed the Expense Limit.

XML

(Retail) | (PIMCO Inflation Response Multi-Asset Fund)

PIMCO Funds

Supplement Dated May 23, 2013 to the

Strategic Markets Class A, Class B, Class C and Class R Prospectus,

dated July 31, 2012, as supplemented from time to time (the "Prospectus")

Disclosure Related to the PIMCO Inflation Response Multi-Asset Fund (the "Fund")

The following changes are effective immediately.

The first sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Fund may invest up to 25% of its total assets in equity-related investments (including investment in common stock, preferred stock, equity securities of Real Estate Investment Trusts ("REITs") and/or investment in the Domestic Equity-Related Underlying PIMCO Funds, the International Equity-Related Underlying PIMCO Funds and the PIMCO RealEstateRealReturn Strategy Fund, an Underlying PIMCO Fund, and in other equity-related Acquired Funds).

The fourth sentence of the fifth paragraph of the "Principal Investment Strategies" section in the Fund's Fund Summary in the Prospectus is deleted in its entirety and replaced with the following:

The Subsidiary is advised by PIMCO and primarily invests in commodity-linked derivative instruments backed by a portfolio of Fixed Income Instruments.