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                                                  [THE VANGUARD GROUP/(R)/LOGO]]


                                                     March 16, 2006

Christian Sandoe, Esq.
Division of Investment Management
U.S. Securities and Exchange Commission            via electronic filing
450 Fifth Street,
N.W., Fifth Floor
Washington, D.C. 20549

RE:        VANGUARD WELLINGTON FUND

Dear Mr. Sandoe:

         The following responds to your comments of February 17, 2006 on the
post-effective amendment of the registration statement of the Vanguard
Wellington Fund (the "Trust"). You commented on Post-Effective Amendment No. 88
that was filed on January 3, 2006.

COMMENT 1: PRIMARY INVESTMENT STRATEGY
- --------------------------------------
Comment:          Identify how Vanguard Wellington Fund (the "Fund") defines
                  medium and large capitalization companies by market
                  capitalization range.

Response:         The Fund's prospectus states that the Fund invests in
                  medium-size and large companies, and lists among the Fund's
                  primary risks, the risks of mid-cap stocks. The prospectus
                  also states on page 6 that market capitalization ranges change
                  over time and that there are no "official" definitions of
                  small- mid- or large-cap, even among Vanguard advisers. We
                  note that the asset-weighted medium market cap of the Fund's
                  stock portfolio as of November 30, 2005 was $55.1 billion. We
                  believe this, as well as the other disclosure contained in the
                  Fund's prospectus, adequately describes the Fund's investment
                  strategies.

COMMENT 2: PRIMARY RISK
- -----------------------
Comment:          Since investment in mortgage-backed securities is listed as a
                  primary risk, please include prepayment risk as a
                  primary risk.

Response:         We have added call/prepayment risk to the primary risk bullet
                  that describes the risks of investing in bonds.   In
                  addition, we have a risk flag on prepayment risk in our
                  Item 4 disclosure.


March 16, 2006
Christian Sandoe
Page 2 of 6





COMMENT 3:        MANAGEMENT FEES
- ---------------------------------
Comment:          Confirm to the SEC that the investment management fee
                  differences between the Fund's share classes are not the
                  result of a difference in fees paid to the Fund's advisor.

Response:         The investment management fee differences between the Fund's
                  share classes are not the result of a difference in
                  advisory fees.

COMMENT 4:        INTEREST RATE RISK FLAG
- -----------------------------------------
Comment:          Please revise the text in the interest rate risk flag. The
                  Prospectus states that interest rate risk is moderate since
                  the duration of the Fund's bond holdings is intermediate-term.
                  This text should be revised since "term" is used to describe
                  maturity, not duration.

Response:         The text has been revised as follows:

                  Interest rate risk should be moderate because the
                  average term of the Fund's bond portfolio is generally
                  intermediate-term, and because the Fund's bond holdings
                  represent less than 40% of the Fund's assets.

COMMENT 5:        DEFINITION OF DURATION
- ----------------------------------------
Comment:          The Fund's Prospectus Glossary includes a definition of
                  duration.  Please put the example used in the Glossary
                  definition in the risk section of the Fund's Prospectus.

Response:         We believe the Fund's discussion in Item 2 and Item 4
                  regarding bond holdings and the risks associated with
                  investment in bonds presents the appropriate level of
                  disclosure.

COMMENT 6:        PORTFOLIO MANAGER DISCLOSURE
- ----------------------------------------------
Comment:          Describe the separate roles of each portfolio manager.

Response:         We have disclosed that each portfolio manager who manages the
                  bond portion of the Fund is a "co-manager" of the
                  Fund.

COMMENT 7:        STATEMENT OF ADDITIONAL INFORMATION: ADVISORY FEE DISCLOSURE
- -------------------------------------------------------------------------------

Comment:          The detail regarding the Fund's advisory fee structure (base
                  and performance fee structure) should be included in
                  the SAI

Response:         We currently have the appropriate level of disclosure.
                  Vanguard operates a multi-manager structure for certain funds
                  pursuant to an exemptive order granted by the Commission in
                  2003 (the "2003 Order").(1)  The funds are

- ---------------------------
1 In the Matter of Vanguard Convertible Securities Fund, et al., File no.
  812-12380, Inv. Co Act Release Nos. 26062 (May 29, 2003)(Notice) and 26089
  (June 25, 2003) (order).


March 16, 2006
Christian Sandoe
Page 3 of 6

                  permitted under the 2003 Order to enter into and amend
                  investment advisory agreements with unaffiliated third-party
                  advisors without shareholder approval, provided certain
                  conditions are met.  The 2003 Order exempts multi-managed
                  Vanguard funds from certain disclosure requirements so that
                  they are only required to disclose advisory fees (as both a
                  dollar amount and as a percentage of a fund's net assets) as
                  follows: (1) aggregate fees paid by a fund to Vanguard
                  and any affiliated advisors; (2) aggregate fees paid by the
                  fund to unaffiliated third-party advisors; and (3)
                  aggregate fees paid by the fund to all investment advisors
                  (collectively, the "Aggregate Fee Disclosure").  A fund
                  using Aggregate Fee Disclosure does not have to include
                  additional details, including asset-based and performance
                  fee schedules, about its advisory fees and fee arrangements.

                  An Aggregate Fee Disclosure regime is in the best interests of
                  fund shareholders. In a recent proposal to codify
                  multi-manager exemptive orders, the Commission said that fund
                  sponsors (including Vanguard) have represented that they "are
                  able to negotiate lower fees with subadvisers if they do not
                  have to disclose those fees separately, and in our orders we
                  have provided them relief from our disclosure requirements. We
                  are proposing to codify this relief, which permits a manager
                  of managers fund to disclose only the aggregate amount of
                  advisory fees that it pays to subadvisers as a group."(2)

COMMENT 8:        STATEMENT OF ADDITIONAL INFORMATION: MATERIALS CONFLICT OF
- ----------------------------------------------------------------------------
                  INTEREST
                  --------

Comment:          Please clarify what the material conflicts of interest are
                  that the adviser seeks to eliminate.

Response:         The following is added to the disclosure under Material
                  Conflicts of Interest:

                  Individual investment professionals at Wellington Management
                  manage multiple portfolios for multiple clients. These
                  accounts may include mutual funds, separate accounts (assets
                  managed on behalf of institutions such as pension funds,
                  insurance companies, foundations), bank common trust accounts,
                  and hedge funds. The portfolio managers listed in the Fund's
                  prospectus (Portfolio Managers) generally manage portfolios in
                  several different investment styles. These portfolios may have
                  investment objectives, strategies, and risk profiles that
                  differ from those of the Fund. The Portfolio Manager makes
                  investment decisions for the Fund based on the investment
                  objectives, policies, practices, benchmarks, cash flows, tax,
                  and other relevant investment considerations applicable to the
                  Fund. Consequently, the Portfolio Manager may purchase or sell
                  securities,
- -----------------------------
(2) Exemption from Shareholder Approval for Certain Subadvisory Contracts,
    Securities Act Release No. 8312 (Oct 23, 2003).


March 16, 2006
Christian Sandoe
Page 4 of 6

                  including IPOs, for one Fund and not another Fund,
                  and the performance of securities purchased for the relevant
                  Fund may vary from the performance of securities purchased for
                  other Funds. The Portfolio Manager or other investment
                  professionals at Wellington Management may place transactions
                  on behalf of other accounts that are directly or indirectly
                  contrary to investment decisions made on behalf the Fund, or
                  make investment decisions that are similar to those made for
                  the Portfolio, both of which have the potential to adversely
                  impact the Portfolio depending on market conditions. For
                  example, the Portfolio Manager may purchase a security in one
                  Fund while appropriately selling that same security in another
                  portfolio. In addition, some of these Portfolios have fee
                  structures, including performance fees, that are or have the
                  potential to be higher, in some cases significantly higher,
                  than the fees paid by the Fund to Wellington Management.
                  Because incentive payments are tied to revenues earned by
                  Wellington Management, and where noted, to the performance
                  achieved by the manager in each account, the incentives
                  associated with any given fund may be significantly higher or
                  lower than those associated with other accounts managed by a
                  given Portfolio Manager. Finally, the Portfolio Manager may
                  hold shares or investment vehicles and/or other accounts
                  identified above.

                  Wellington Management's goal is to meet its fiduciary
                  obligation to treat all clients fairly while at the same time
                  providing high quality investment services to all of its
                  clients. Wellington Management has adopted and implemented
                  policies and procedures, including brokerage and trade
                  allocation policies and procedures, that it believes address
                  the conflicts associated with managing multiple accounts for
                  multiple clients. In addition, Wellington Management monitors
                  a variety of areas, including compliance with primary Fund
                  guidelines, the allocation of IPOs, and compliance with the
                  firm's Code of Ethics, and places additional investment
                  restrictions on investment professionals who manage hedge
                  funds and certain other accounts. Furthermore, senior
                  investment and business personnel at Wellington Management
                  periodically review the performance of the Portfolio Managers.
                  Although Wellington Management does not track the time a
                  Portfolio Manager spends on a single portfolio, Wellington
                  Management does periodically assess whether a Portfolio
                  Manager has adequate time and resources to effectively manage
                  the Portfolio Manager's overall book of business.

COMMENT 9:        STATEMENT OF ADDITIONAL INFORMATION: COMPENSATION
- -------------------------------------------------------------------

Comment:          Please describe how compensation is made to the Fund's
                  portfolio managers.

Response:         The revised disclosure under Description of Compensation
                  states:


March 16, 2006
Christian Sandoe
Page 5 of 6

                  The Fund pays Wellington Management a fee based on the assets
                  under management of the Fund as set forth in the Investment
                  Advisory Agreement with Wellington Management. Wellington
                  Management pays its investment professionals out of its total
                  revenues and other resources, including the advisory fees
                  earned with respect to the Fund. Wellington Management's
                  compensation structure is designed to attract and retain
                  high-caliber investment professionals necessary to deliver
                  high quality investment management services to our clients.
                  Wellington Management's compensation of the Portfolio Managers
                  includes a base salary and incentive components. Each
                  Portfolio Manager's base salary is determined by the Managing
                  Partners of Wellington Management. It is generally a fixed
                  amount that may change as a result of an annual review. Each
                  Portfolio Manager is eligible to receive an incentive payment
                  based on the revenues earned by Wellington Management from
                  portfolios for which they have portfolio management
                  responsibility, including the Fund. With respect to the Fund,
                  the overall revenues to Wellington Management vary with the
                  performance of the Fund relative to the S&P 500 Index
                  (65%)/Lehman Credit A or Better Bond Index (35%) over rolling
                  three year periods. Mr. Bousa's incentive on the Fund is
                  additionally linked to the gross pre-tax performance of the
                  equity portion of the Fund compared to the S&P 500 Index over
                  one and three year periods, with an emphasis on three year
                  results. Wellington Management applies similar incentive
                  compensation structures to other portfolios managed by Mr.
                  Bousa. Mr. Kaplan's incentive on the Fund is based solely on
                  the revenues earned by Wellington Management and has no
                  additional performance link. Wellington Management applies
                  similar incentive structures to other portfolios managed by
                  Mr. Kaplan. Mr. Keogh did not receive an incentive payment
                  linked directly to the Fund during the Fund's fiscal year.
                  Portfolio-based incentives across all portfolios managed by an
                  investment professional can, and typically do, represent a
                  significant portion of an investment professional's overall
                  compensation; incentive compensation varies significantly by
                  individual and can vary significantly from year to year. The
                  Portfolio Managers may also be eligible for bonus payments
                  based on their overall contribution to Wellington Management's
                  business operations. Senior management at Wellington
                  Management may reward individuals as it deems appropriate
                  based on factors other than portfolio performance. The
                  Portfolio Managers, all partners of Wellington Management, are
                  also eligible to participate in a partner-funded tax qualified
                  retirement plan, the contributions to which are made pursuant
                  to an actuarial formula.

COMMENT 10:       STATEMENT OF ADDTIONAL INFORMATION: PORTFOLIO MANAGERS'
- -------------------------------------------------------------------------
                  HOLDINGS
                  --------

Comment:         Disclose each portfolio manager's ownership of fund securities.


March 16, 2006
Christian Sandoe
Page 6 of 6

Response:         The revised text states:

                  As of November 30, 2005, Mr. Bousa, Mr. Kaplan, and Mr. Keogh
                  each owned shares of the Fund in an amount exceeding
                  $1 million.


COMMENT 11:       TANDY REQUIREMENTS
- ------------------------------------
Comment:          The SEC is now requiring all registrants to provide at the
                  end of response letters to registration statement
                  comments, the following statements:
                  o The Trust is responsible for the adequacy and accuracy of
                    the disclosure in the filing.
                  o Staff comments or changes in response to staff comments in
                    the filings reviewed by the staff do not foreclose the
                    Commission from taking any action with respect to the
                    filing.
                  o The Trust may not assert staff comments as a defense in
                    any proceeding initiated by the Commission or any person
                    under the federal securities laws of the United States.

Response:         As required by the SEC, we will provide the foregoing
                  acknowledgements.

                                        * * * * *

                  As required by the SEC, the Trust acknowledges that:

                  o The Trust is responsible for the adequacy and accuracy
                    of the disclosure in the filing.
                  o Staff comments or changes in response to staff comments in
                    the filings reviewed by the staff do not foreclose the
                    Commission from taking any action with respect to the
                    filing.
                  o The Trust may not assert staff comments as a defense in any
                    proceeding initiated by the Commission or any person under
                    the federal securities laws of the United States.

         Please contact me at (610) 669-5284 with any questions or comments
regarding the above responses. Thank you.

                                                     Sincerely,

                                                     /s/ Lisa Matson
                                                     Lisa  Matson
                                                     Associate Counsel