485BXT 1 main.htm

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT (No. 002-86711)

UNDER THE SECURITIES ACT OF 1933

[X]

Pre-Effective Amendment No.

[ ]

Post-Effective Amendment No. 84

[X]

and

REGISTRATION STATEMENT (No. 811-03855)

UNDER THE INVESTMENT COMPANY ACT OF 1940

[X]

Amendment No. 84

[X]

Fidelity Advisor Series VIII

(Exact Name of Registrant as Specified in Charter)

82 Devonshire St., Boston, Massachusetts 02109

(Address Of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number: 617-563-7000

Eric D. Roiter, Secretary

82 Devonshire Street

Boston, Massachusetts 02109

(Name and Address of Agent for Service)

It is proposed that this filing will become effective

( )

immediately upon filing pursuant to paragraph (b).

( )

on ( ) pursuant to paragraph (b) at 5:30 p.m. Eastern Time.

( )

60 days after filing pursuant to paragraph (a)(1) at 5:30 p.m. Eastern Time.

( )

on ( ) pursuant to paragraph (a)(1) of Rule 485 at 5:30 p.m. Eastern Time.

( )

75 days after filing pursuant to paragraph (a)(2) at 5:30 p.m. Eastern Time.

( )

on ( ) pursuant to paragraph (a)(2) of Rule 485 at 5:30 p.m. Eastern Time.

If appropriate, check the following box:

(X)

this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

The purpose of this Post-Effective Amendment No. 84 to Fidelity Advisor Series VIII's Registration Statement on Form N-1A is to designate a new effective date, June 13, 2006, for the previously filed Post-Effective Amendment No. 83. The prospectus, statement of additional information (SAI), and Part C for this Post-Effective Amendment No. 84 are identical to those filed in Post-Effective Amendment No. 83, and the prospectus, SAI, and Part C are incorporated herein in their entirety by reference to those filed in Post-Effective Amendment No. 83.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for the effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Post-Effective Amendment No. 84 to the Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Boston, and Commonwealth of Massachusetts, on the 10th day of May 2006.

Fidelity Advisor Series VIII

By

/s/Christine Reynolds

||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

Christine Reynolds, President

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

(Signature)

(Title)

(Date)

/s/Christine Reynolds

President and Treasurer

May 10, 2006

Christine Reynolds

(Principal Executive Officer)

/s/Paul M. Murphy

Chief Financial Officer

May 10, 2006

Paul M. Murphy

(Principal Financial Officer)

/s/Edward C. Johnson 3d

(dagger)

Trustee

May 10, 2006

Edward C. Johnson 3d

/s/Dennis J. Dirks

*

Trustee

May 10, 2006

Dennis J. Dirks

/s/Albert R. Gamper

**

Trustee

May 10, 2006

Albert R. Gamper

/s/Robert M. Gates

*

Trustee

May 10, 2006

Robert M. Gates

/s/George H. Heilmeier

*

Trustee

May 10, 2006

George H. Heilmeier

/s/ Stephen P. Jonas

Trustee

May 10, 2006

Stephen P. Jonas

/s/Marie L. Knowles

*

Trustee

May 10, 2006

Marie L. Knowles

/s/Ned C. Lautenbach

*

Trustee

May 10, 2006

Ned C. Lautenbach

/s/William O. McCoy

*

Trustee

May 10, 2006

William O. McCoy

/s/Robert L. Reynolds

*

Trustee

May 10, 2006

Robert L. Reynolds

/s/Cornelia M. Small

*

Trustee

May 10, 2006

Cornelia M. Small

/s/William S. Stavropoulos

*

Trustee

May 10, 2006

William S. Stavropoulos

/s/Kenneth L. Wolfe

*

Trustee

May 10, 2006

Kenneth L. Wolfe

(dagger)Signature affixed by Abigail P. Johnson, pursuant to a power of attorney dated June 14, 2001 and filed herewith.

* By: /s/Margery K. Neale
Margery K. Neale, pursuant to a power of attorney dated January 1, 2005 and filed herewith.

** By: /s/Margery K. Neale
Margery K. Neale, pursuant to a power of attorney dated January 24, 2006 and filed herewith.

POWER OF ATTORNEY

I, the undersigned President and Director, Trustee, or General Partner, as the case may be, of the following investment companies:

Colchester Street Trust

Fidelity Aberdeen Street Trust

Fidelity Advisor Series I

Fidelity Advisor Series II

Fidelity Advisor Series III

Fidelity Advisor Series IV

Fidelity Advisor Series VI

Fidelity Advisor Series VII

Fidelity Advisor Series VIII

Fidelity Beacon Street Trust

Fidelity Boston Street Trust

Fidelity California Municipal Trust

Fidelity California Municipal Trust II

Fidelity Capital Trust

Fidelity Charles Street Trust

Fidelity Commonwealth Trust

Fidelity Concord Street Trust

Fidelity Congress Street Fund

Fidelity Contrafund

Fidelity Court Street Trust

Fidelity Court Street Trust II

Fidelity Covington Trust

Fidelity Destiny Portfolios

Fidelity Devonshire Trust

Fidelity Exchange Fund

Fidelity Financial Trust

Fidelity Fixed-Income Trust

Fidelity Garrison Street Trust

Fidelity Government Securities Fund

Fidelity Hastings Street Trust

Fidelity Hereford Street Trust

Fidelity Income Fund

Fidelity Institutional Tax-Exempt Cash Portfolios

Fidelity Investment Trust

Fidelity Magellan Fund

Fidelity Massachusetts Municipal Trust

Fidelity Money Market Trust

Fidelity Mt. Vernon Street Trust

Fidelity Municipal Trust

Fidelity Municipal Trust II

Fidelity New York Municipal Trust

Fidelity New York Municipal Trust II

Fidelity Oxford Street Trust

Fidelity Phillips Street Trust

Fidelity Puritan Trust

Fidelity Revere Street Trust

Fidelity School Street Trust

Fidelity Securities Fund

Fidelity Select Portfolios

Fidelity Summer Street Trust

Fidelity Trend Fund

Fidelity U.S. Investments-Bond Fund, L.P.

Fidelity U.S. Investments-Government Securities

Fund, L.P.

Fidelity Union Street Trust

Fidelity Union Street Trust II

Newbury Street Trust

Variable Insurance Products Fund

Variable Insurance Products Fund II

Variable Insurance Products Fund III

Variable Insurance Products Fund IV

in addition to any other investment company for which Fidelity Management & Research Company or an affiliate acts as investment adviser and for which the undersigned individual serves as President and Director, Trustee, or General Partner (collectively, the "Funds"), hereby constitute and appoint Abigail P. Johnson my true and lawful attorney-in-fact, with full power of substitution, and with full power to said attorney-in-fact to sign for me and in my name in the appropriate capacity, all Registration Statements of the Funds on Form N-1A, Form N-8A, or any successor thereto, any and all subsequent Amendments, Pre-Effective Amendments, or Post-Effective Amendments to said Registration Statements on Form N-1A, Form N-8A, or any successor thereto, any Registration Statements on Form N-14, and any supplements or other instruments in connection therewith, and generally to do all such things in my name and on my behalf in connection therewith as said attorney-in-fact deems necessary or appropriate, to comply with the provisions of the Securities Act of 1933 and the Investment Company Act of 1940, and all related requirements of the Securities and Exchange Commission. I hereby ratify and confirm all that said attorney-in-fact or his substitutes may do or cause to be done by virtue hereof. This power of attorney is effective for all documents filed on or after June 15, 2001.

WITNESS my hand on the date set forth below.

/s/Edward C. Johnson 3d

June 14, 2001

Edward C. Johnson 3d

POWER OF ATTORNEY

We, the undersigned Directors, Trustees, or General Partners, as the case may be, of the following investment companies:

Colchester Street Trust

Fidelity Aberdeen Street Trust

Fidelity Advisor Series I

Fidelity Advisor Series II

Fidelity Advisor Series IV

Fidelity Advisor Series VII

Fidelity Advisor Series VIII

Fidelity Beacon Street Trust

Fidelity Boston Street Trust

Fidelity Boylston Street Trust

Fidelity California Municipal Trust

Fidelity California Municipal Trust II

Fidelity Capital Trust

Fidelity Charles Street Trust

Fidelity Commonwealth Trust

Fidelity Concord Street Trust

Fidelity Congress Street Fund

Fidelity Contrafund

Fidelity Court Street Trust

Fidelity Court Street Trust II

Fidelity Covington Trust

Fidelity Destiny Portfolios

Fidelity Devonshire Trust

Fidelity Exchange Fund

Fidelity Financial Trust

Fidelity Fixed-Income Trust

Fidelity Garrison Street Trust

Fidelity Hanover Street Trust

Fidelity Hastings Street Trust

Fidelity Hereford Street Trust

Fidelity Income Fund

Fidelity Investment Trust

Fidelity Magellan Fund

Fidelity Massachusetts Municipal Trust

Fidelity Money Market Trust

Fidelity Mt. Vernon Street Trust

Fidelity Municipal Trust

Fidelity Municipal Trust II

Fidelity New York Municipal Trust

Fidelity New York Municipal Trust II

Fidelity Oxford Street Trust

Fidelity Phillips Street Trust

Fidelity Puritan Trust

Fidelity Revere Street Trust

Fidelity School Street Trust

Fidelity Securities Fund

Fidelity Select Portfolios

Fidelity Summer Street Trust

Fidelity Trend Fund

Fidelity Union Street Trust

Fidelity Union Street Trust II

Newbury Street Trust

Variable Insurance Products Fund

Variable Insurance Products Fund II

Variable Insurance Products Fund III

Variable Insurance Products Fund IV

plus any other investment company for which Fidelity Management & Research Company or an affiliate acts as investment adviser and for which the undersigned individuals serve as Directors, Trustees, or General Partners (collectively, the "Funds"), hereby revoke all previous powers of attorney we have given to sign and otherwise act in our names and behalf in matters involving the Funds and hereby constitute and appoint Barry P. Barbash, Maria Gattuso, Craig S. Tyle, Margery K. Neale and Karen H. McMillan, each of them singly, our true and lawful attorneys-in-fact, with full power of substitution, and with full power to each of them, to sign for us and in our names in the appropriate capacities, all Registration Statements of the Funds on Form N-1A, Form N-8A or any successor thereto, any and all subsequent Amendments, Pre-Effective Amendments, or Post-Effective Amendments to said Registration Statements on Form N-1A or any successor thereto, any Registration Statements on Form N-14, and any supplements or other instruments in connection therewith, and generally to do all such things in our names and behalf in connection therewith as said attorneys-in-fact deem necessary or appropriate, to comply with the provisions of the Securities Act of 1933 and the Investment Company Act of 1940, and all related requirements of the Securities and Exchange Commission. We hereby ratify and confirm all that said attorneys-in-fact or their substitutes may do or cause to be done by virtue hereof. This power of attorney is effective for all documents filed on or after January 1, 2005.

WITNESS our hands on this first day of January 2005.

/s/Laura B. Cronin

/s/Marvin L. Mann

Laura B. Cronin

Marvin L. Mann

/s/Dennis J. Dirks

/s/William O. McCoy

Dennis J. Dirks

William O. McCoy

/s/Robert M. Gates

/s/Robert L. Reynolds

Robert M. Gates

Robert L. Reynolds

/s/George H. Heilmeier

/s/Cornelia M. Small

George H. Heilmeier

Cornelia M. Small

/s/Abigail P. Johnson

/s/William S. Stavropoulos

Abigail P. Johnson

William S. Stavropoulos

/s/Marie L. Knowles

/s/Kenneth L. Wolfe

Marie L. Knowles

Kenneth L. Wolfe

/s/Ned C. Lautenbach

Ned C. Lautenbach

POWER OF ATTORNEY

I, the undersigned Trustee of the following investment companies:

Colchester Street Trust

Fidelity Aberdeen Street Trust

Fidelity Advisor Series I

Fidelity Advisor Series II

Fidelity Advisor Series IV

Fidelity Advisor Series VIII

Fidelity California Municipal Trust

Fidelity Capital Trust

Fidelity Central Investment Portfolios LLC

Fidelity Charles Street Trust

Fidelity Commonwealth Trust

Fidelity Concord Street Trust

Fidelity Contrafund

Fidelity Court Street Trust

Fidelity Court Street Trust II

Fidelity Destiny Portfolios

Fidelity Devonshire Trust

Fidelity Financial Trust

Fidelity Hastings Street Trust

Fidelity Hereford Street Trust

Fidelity Investment Trust

Fidelity Magellan Fund

Fidelity Massachusetts Municipal Trust

Fidelity Money Market Trust

Fidelity School Street Trust

Fidelity Union Street Trust

Fidelity Union Street Trust II

Newbury Street Trust

Variable Insurance Products Fund

Variable Insurance Products Fund II

Variable Insurance Products Fund III

Variable Insurance Products Fund IV

plus any other investment company for which Fidelity Management & Research Company or an affiliate acts as investment adviser and for which the undersigned individual serves as Trustee (collectively, the "Funds"), hereby constitute and appoint Barry P. Barbash, Maria Gattuso, Margery K. Neale and Karen H. McMillan, each of them singly, my true and lawful attorneys-in-fact, with full power of substitution, and with full power to each of them, to sign for me and in my name in the appropriate capacities, all Registration Statements of the Funds on Form N-1A, Form N-8A or any successor thereto, any and all subsequent Amendments, Pre-Effective Amendments, or Post-Effective Amendments to said Registration Statements on Form N-1A or any successor thereto, any Registration Statements on Form N-14, and any supplements or other instruments in connection therewith, and generally to do all such things in my name and behalf in connection therewith as said attorneys-in-fact deem necessary or appropriate, to comply with the provisions of the Securities Act of 1933 and the Investment Company Act of 1940, and all related requirements of the Securities and Exchange Commission. I hereby ratify and confirm all that said attorneys-in-fact or their substitutes may do or cause to be done by virtue hereof. This power of attorney is effective for all documents filed on or after January 24, 2006.

WITNESS my hand on this 24th of January 2006.

/s/Albert R. Gamper

Albert R. Gamper