497

Rule 497 Document

On behalf of PIMCO Emerging Markets Corporate Bond Fund (the “Fund”), 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 supplement filed with the Securities and Exchange Commission on behalf of the Fund pursuant to Rule 497(e) on September 28, 2012 (Accession No. 0001193125-12-409362), which is 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

PIMCO Funds

Supplement Dated October 1, 2012 to the

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

Class M, Class P, Administrative Class and Class D Prospectus, each dated July 31, 2012, as

supplemented from time to time (each a "Prospectus")

(PIMCO Emerging Markets Corporate Bond Fund)

Disclosure Related to the PIMCO Emerging Markets Corporate Bond Fund (the "Fund")

Effective immediately, the advisory fee for the Fund is decreased by 0.10% to 0.75% causing the Fund's Total Annual Fund Operating Expenses to decrease as described below. This advisory fee reduction results in the Fund's Management Fees decreasing to 1.15% for Institutional and Administrative Class shares, 1.25% for Class P shares and 1.30% for Class A, Class C and Class D shares and the Fund's Total Annual Fund Operating Expenses decreasing to 1.15% for Institutional Class shares, 1.25% for Class P shares, 1.40% for Administrative Class shares, 1.55% for Class A and Class D shares and 2.30% for Class C shares.

Effective immediately, corresponding changes are made to the Fund's Annual Fund Operating Expenses table and related footnotes, as well as the Expense Example following the table. Also, effective immediately, footnotes describing the fee reduction are added to: (i) the Management Fees table in the "Management of the Funds – Management Fees" section of the prospectus; and (ii) the advisory fees table in the "Management of the Funds – Management Fees" section of the prospectus.

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

Sep. 28, 2012

Document Effective Date

dei_DocumentEffectiveDate

Oct. 01, 2012

Prospectus Date

rr_ProspectusDate

Oct. 01, 2012

Supplement [Text Block]

pimco_SupplementTextBlock

PIMCO Funds

Supplement Dated October 1, 2012 to the

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

Class M, Class P, Administrative Class and Class D Prospectus, each dated July 31, 2012, as

supplemented from time to time (each a "Prospectus")

(PIMCO Emerging Markets Corporate Bond Fund)

Risk/Return:

rr_RiskReturnAbstract

Supplement [Text Block]

pimco_SupplementTextBlock

Disclosure Related to the PIMCO Emerging Markets Corporate Bond Fund (the "Fund")

Effective immediately, the advisory fee for the Fund is decreased by 0.10% to 0.75% causing the Fund's Total Annual Fund Operating Expenses to decrease as described below. This advisory fee reduction results in the Fund's Management Fees decreasing to 1.15% for Institutional and Administrative Class shares, 1.25% for Class P shares and 1.30% for Class A, Class C and Class D shares and the Fund's Total Annual Fund Operating Expenses decreasing to 1.15% for Institutional Class shares, 1.25% for Class P shares, 1.40% for Administrative Class shares, 1.55% for Class A and Class D shares and 2.30% for Class C shares.

Effective immediately, corresponding changes are made to the Fund's Annual Fund Operating Expenses table and related footnotes, as well as the Expense Example following the table. Also, effective immediately, footnotes describing the fee reduction are added to: (i) the Management Fees table in the "Management of the Funds – Management Fees" section of the prospectus; and (ii) the advisory fees table in the "Management of the Funds – Management Fees" section of the prospectus.

XML

PIMCO Funds

Supplement Dated October 1, 2012 to the

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

Class M, Class P, Administrative Class and Class D Prospectus, each dated July 31, 2012, as

supplemented from time to time (each a "Prospectus")

(PIMCO Emerging Markets Corporate Bond Fund)

Disclosure Related to the PIMCO Emerging Markets Corporate Bond Fund (the "Fund")

Effective immediately, the advisory fee for the Fund is decreased by 0.10% to 0.75% causing the Fund's Total Annual Fund Operating Expenses to decrease as described below. This advisory fee reduction results in the Fund's Management Fees decreasing to 1.15% for Institutional and Administrative Class shares, 1.25% for Class P shares and 1.30% for Class A, Class C and Class D shares and the Fund's Total Annual Fund Operating Expenses decreasing to 1.15% for Institutional Class shares, 1.25% for Class P shares, 1.40% for Administrative Class shares, 1.55% for Class A and Class D shares and 2.30% for Class C shares.

Effective immediately, corresponding changes are made to the Fund's Annual Fund Operating Expenses table and related footnotes, as well as the Expense Example following the table. Also, effective immediately, footnotes describing the fee reduction are added to: (i) the Management Fees table in the "Management of the Funds – Management Fees" section of the prospectus; and (ii) the advisory fees table in the "Management of the Funds – Management Fees" section of the prospectus.