================================================================================

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D
                                 (Rule 13d-101)
                               (Amendment No. 11)


             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
            TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
                                  RULE 13d-2(a)



                              The Korea Fund, Inc.
                              --------------------
                                (Name of Issuer)


                     Common Stock, par value $.01 per share
                     --------------------------------------
                         (Title of Class of Securities)


                                    500634100
                                 --------------
                                 (CUSIP Number)


                                 Barry M. Olliff
            c/o City of London Investment Management Company Limited
                     10 Eastcheap, London EC3M ILX, England
                                +44 207 711 0771
           -----------------------------------------------------------
           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)


                                 August 10, 2005
             -------------------------------------------------------
             (Date of Event Which Requires Filing of This Statement)




If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), (f) or (g), check the following box / /.

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 or otherwise subject to the liabilities of that section of the Act but
shall be subject to all other provisions of the Act.
================================================================================

===================                                                  ===========
CUSIP NO. 500634100                    13D                           PAGE 2 of 5
===================                                                  ===========

================================================================================
     1       NAME OF REPORTING PERSONS
             S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

             City of London Investment Group PLC, a company incorporated under 
             the laws of England and Wales.
------------ -------------------------------------------------------------------
     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP            (A) [_]
                                                                         (B) [_]

------------ -------------------------------------------------------------------
     3       SEC USE ONLY


------------ -------------------------------------------------------------------
     4       SOURCE OF FUNDS*

             OO
------------ -------------------------------------------------------------------
     5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
             TO ITEM 2(d) OR 2(e)
                                                                             [_]
------------ -------------------------------------------------------------------
     6       CITIZENSHIP OR PLACE OF ORGANIZATION

             England and Wales
--------------------------------------------------------------------------------
  NUMBER OF              7      SOLE VOTING POWER

   SHARES                       5,440,119
                   ------------ ------------------------------------------------
BENEFICIALLY             8      SHARED VOTING POWER

  OWNED BY                      0
                   ------------ ------------------------------------------------
    EACH                 9      SOLE DISPOSITIVE POWER

  REPORTING                     5,440,119
                   ------------ ------------------------------------------------
   PERSON               10      SHARED DISPOSITIVE POWER

    WITH                        0
------------ -------------------------------------------------------------------
    11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             5,440,119
------------ -------------------------------------------------------------------
    12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
             SHARES
                                                                             [_]
------------ -------------------------------------------------------------------
    13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             12.17%
------------ -------------------------------------------------------------------
    14       TYPE OF REPORTING PERSON*

             HC
================================================================================

                               (Page 2 of 5 Pages)

===================                                                  ===========
CUSIP NO. 500634100                    13D                           PAGE 3 of 5
===================                                                  ===========

================================================================================
     1       NAME OF REPORTING PERSONS
             S.S. OR I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS

             City of London Investment Management Company Limited, a company 
             incorporated under the laws of England and Wales.
------------ -------------------------------------------------------------------
     2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP            (A) [_]
                                                                         (B) [_]

------------ -------------------------------------------------------------------
     3       SEC USE ONLY


------------ -------------------------------------------------------------------
     4       SOURCE OF FUNDS*

             WC
------------ -------------------------------------------------------------------
     5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
             TO ITEM 2(d) OR 2(e)
                                                                             [_]
------------ -------------------------------------------------------------------
     6       CITIZENSHIP OR PLACE OF ORGANIZATION

             England and Wales
--------------------------------------------------------------------------------
  NUMBER OF              7      SOLE VOTING POWER

   SHARES                       5,440,119
                   ------------ ------------------------------------------------
BENEFICIALLY             8      SHARED VOTING POWER

  OWNED BY                      0
                   ------------ ------------------------------------------------
    EACH                 9      SOLE DISPOSITIVE POWER

  REPORTING                     5,440,119
                   ------------ ------------------------------------------------
   PERSON               10      SHARED DISPOSITIVE POWER

    WITH                        0
------------ -------------------------------------------------------------------
    11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

             5,440,119
------------ -------------------------------------------------------------------
    12       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
             SHARES
                                                                             [_]
------------ -------------------------------------------------------------------
    13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

             12.17%
------------ -------------------------------------------------------------------
    14       TYPE OF REPORTING PERSON*

             IA
================================================================================

                               (Page 3 of 5 Pages)


This Amendment No. 11 to Schedule 13D (this "Amendment No. 10") should be read
in conjunction with the Schedule 13D filed with the U.S. Securities and Exchange
Commission (the "SEC") on February 17, 2004 (the "Original Schedule 13D"), with
Amendment No. 1 to Schedule 13D filed with the SEC on March 1, 2004 ("Amendment
No. 1"), with Amendment No. 2 to Schedule 13D filed with the SEC on May 5, 2004
("Amendment No. 2"), with Amendment No. 3 to Schedule 13D filed with the SEC on
July 8, 2004 ("Amendment No. 3"), with Amendment No. 4 to Schedule 13D filed
with the SEC on August 31, 2004 ("Amendment No. 4"), with Amendment No. 5 to
Schedule 13D filed with the SEC on November 15, 2004 ("Amendment No. 5"), with
Amendment No. 6 to Schedule 13D filed with the SEC on December 23, 2004
("Amendment No. 6"), with Amendment No. 7 to Schedule 13D filed with the SEC on
May 18, 2005 ("Amendment No. 7"), with Amendment No. 8 to Schedule 13D filed
with the SEC on June 10, 2005 ("Amendment No. 8"), with Amendment No. 9 to
Schedule 13D filed with the SEC on July 5, 2005 ("Amendment No. 9") and with
Amendment No. 10 to Schedule 13D filed with the SEC on August 5, 2005
("Amendment No. 10") and, together with Amendment No. 1, Amendment No. 2,
Amendment No. 3, Amendment No. 4, Amendment No. 5, Amendment No. 6, Amendment
No. 7, Amendment No. 8, Amendment No. 9 and Amendment No. 10, the "Amendments")
by City of London Investment Group PLC ("City of London") and City of London
Investment Management Company Limited relating to the shares of common stock,
par value $0.01 per share (the "Shares"), of The Korea Fund, Inc., a Maryland
corporation (the "Fund"). This Amendment No. 11 amends Item 5 of the Original
Schedule 13D as amended by the Amendments. All other information in the Original
Schedule 13D and the Amendments remain in effect. All capitalized terms used
herein and not otherwise defined shall have the meanings ascribed thereto in the
Original Schedule 13D as amended by the Amendments.


ITEM 5.          INTERESTS IN SECURITIES OF THE ISSUER.
                 --------------------------------------

                 Items 5(a) and 5(b) below are hereby amended and restated in
                 their entirety and Item 5(c) is hereby amended as follows:

                 (a) and (b). As of the date hereof, EWF, GEM, IEM, GFM, FREE,
                 FOCUS and Accounts owned directly 216,036, 1,341,044,
                 1,341,044, 141,236, 594,494, 79,000 and 1,727,265 Shares,
                 respectively, representing approximately 0.48%, 2.99%, 2.99%,
                 0.31%, 1.33%, 0.17% and 3.86%, respectively, of the Shares
                 outstanding (based on the most recent Share information
                 publicly disclosed by the Fund).

                 As of the date hereof, CLIG, through its control of CLIM, is
                 the beneficial owner of 5,440,119 Shares, representing
                 approximately 12.17% of the Shares outstanding (based on the
                 most recent Share information publicly disclosed by the Fund).

                 As of the date hereof, CLIM, through EWF, GEM, IEM, FREE, GFM,
                 FOCUS and the Accounts, is the beneficial owner 5,440,119
                 Shares, representing approximately 12.17% of the Shares
                 outstanding (based on the most recent Share information
                 publicly disclosed by the Fund).

                               (Page 4 of 5 Pages)


                 (c). Except as described below, no transactions in the Shares
                 were effected by the Reporting Persons, or, to their knowledge,
                 any of the persons identified in Item 2, since the filing of
                 Amendment No. 10.



      ====================================================================
            Trade      Transaction     Number of      Trade
            Date          Type           Shares       Price    Portfolio
      ====================================================================
         8/10/2005      Purchase        196,243       30.27     Accounts
         8/10/2005      Purchase        260,000       30.27     FREE
         8/10/2005      Purchase         79,000       30.27     FOCUS
         8/10/2005      Purchase         30,000       30.27     GFM
         8/10/2005      Purchase        246,317       30.27     IEM
         8/10/2005      Purchase         74,000       30.27     EWF
         8/10/2005      Purchase        108,140       30.27     GEM
      ====================================================================


                                    SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.

Dated: August 11, 2005


                                        CITY OF LONDON INVESTMENT GROUP PLC


                                        /s/ Barry M. Olliff 
                                        --------------------------              
                                        Name: Barry M. Olliff
                                        Title: Director




                                        CITY OF LONDON INVESTMENT
                                        MANAGEMENT COMPANY LIMITED


                                        /s/ Barry M. Olliff  
                                        --------------------------              
                                        Name: Barry M. Olliff
                                        Title: Director


















                               (Page 5 of 5 Pages)