Form 485BPOS VANGUARD WELLINGTON FUND

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

REGISTRATION STATEMENT (NO. 811-00121) UNDER THE INVESTMENT COMPANY ACT

OF 1940

Amendment No. 111

[X]

VANGUARD WELLINGTON FUND

(Exact Name of Registrant as Specified in Declaration of Trust)

P.O. Box 2600, Valley Forge, PA 19482

(Address of Principal Executive Office)

Registrant’s Telephone Number (610) 669-1000

Anne E. Robinson, Esquire

P.O. Box 876

Valley Forge, PA 19482

Approximate Date of Proposed Public Offering:

It is proposed that this filing will become effective (check appropriate box)

If appropriate, check the following box:

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant hereby certifies that it meets all requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and it has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the Town of Valley Forge in the Commonwealth of Pennsylvania, on the 6th day of March, 2018.

VANGUARD WELLINGTON FUND

BY:_____/s/ Mortimer J. Buckley*_____

Mortimer J. Buckley
Chief Executive Officer, President, and Trustee

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment to the Registration Statement has been signed below by the following persons in the capacities and on the date indicated:

*By: /s/ Anne E. Robinson

Anne E. Robinson, pursuant to a Power of Attorney filed on January 18, 2018, see File Number 33-32216, Incorporated by Reference.