SECURITIES AND EXCHANGE COMMISSION
                              Washington D.C. 20549


                                    FORM 6-K

                        REPORT OF FOREIGN PRIVATE ISSUER
                      Pursuant to Rule 13a-16 or 15d-16 of
                       the Securities Exchange Act of 1933


                           For the month of June 2005


                                BANCOLOMBIA S.A.
                                ----------------
                 (Translation of Registrant's name into English)


                               Calle 50 No. 51-66
                               Medellin, Colombia
                               ------------------
                    (Address of principal executive offices)


(Indicate by check mark whether the registrant files or will file annual reports
under cover of Form 20-F or Form 40-F.)

      Form 20-F      X              Form 40-F
                -----------                   -----------

(Indicate by check mark whether the registrant by furnishing the information
contained in this form is also thereby furnishing the information to the
Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of
1934.)


      Yes                           No               X
                 -----------                   ------------

(If "Yes" is marked, indicate below the file number assigned to the registrant
in connection with Rule 12g3-2(b): 82-______________.)




      This Report on Form 6-K shall be incorporated by reference into the
      registrant's registration statement on Form F-3 (File No. 333-12658).




                                    SIGNATURE

            Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

                                 BANCOLOMBIA S.A.
                                    (Registrant)


Date: June 13, 2005     By  /s/ JAIME ALBERTO VELASQUEZ B.
                           ----------------------------------
                                Name:  Jaime Alberto Velasquez B.
                                Title: Vice President of Finance


[BANCOLOMBIA LOGO]


           BANCOLOMBIA REPORTS UNCONSOLIDATED NET INCOME OF PS 232,743
                  MILLION DURING THE FIRST FIVE MONTHS OF 2005

MEDELLIN, COLOMBIA. JUNE 13, 2005


BANCOLOMBIA reported unconsolidated net income of Ps 41,231 million for the
month ended May 31, 2005. For the first five months of 2005 the Bank reported
accumulated net income of Ps 232,743 million, 53.1% higher than for the same
period in 2004*.

Total net interest income, including investment securities, amounted to Ps
88,566 million in May 2005 and Ps 428,561 million for the five-month period
ended May 31, 2005. Additionally, total net fees and income from services
amounted to Ps 30,869 million in May 2005 and Ps 143,021 million for the first
five months of 2005.

Total assets amounted to Ps 14.49 trillion in May 2005, 22.9% higher than the
reported in May 2004. Total deposits increased approximately 18.1% to Ps 8.71
trillion over the last twelve months. BANCOLOMBIA's total shareholders' equity
amounted to Ps 1.95 trillion in May 2005, which constitutes a 24.2% increase
over the Ps 1.57 trillion reported in May 2004.

BANCOLOMBIA's (unconsolidated) level of past due loans as a percentage of total
loans was 1.83% as of May 31, 2005, and the level of allowance for past due
loans was 238%.

MARKET SHARE

According to ASOBANCARIA (Colombia's national banking association),
BANCOLOMBIA's market share of the Colombian Financial System in May 2005 was as
follows: 12.1% of total deposits, 13.9% of total net loans, 10.5% of total
savings accounts, 17.8% of total checking accounts and 10.8% of total time
deposits.



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 * This report corresponds to the interim financial statements of BANCOLOMBIA,
 which are subject to review by the Superintendency of Banking. The information
 contained herein has been prepared in accordance with generally accepted
 accounting principles (GAAP) in Colombia, and is expressed in nominal terms and
 has not been audited.
 CAUTIONARY NOTE REGARDING FORWARD LOOKING STATEMENTS
 This release contains statements that may be considered forward-looking
 statements within the meaning of Section 27A of the U.S. Securities Act of 1933
 and Section 21E of the U.S. Securities Exchange Act of 1934. All
 forward-looking statements, whether made in this release or in future filings
 or press releases or orally, address matters that involve risks and
 uncertainties; consequently, there are or will be factors that could cause
 actual results to differ materially from those indicated in such statements.

Contacts
JAIME A. VELASQUEZ      MAURICIO BOTERO         FAX: (574) 2317208
FINANCIAL VP            IR MANAGER              WWW.BANCOLOMBIA.COM
TEL.: (574) 5108666     TEL.: (574) 5108866     INVESTORRELATIONS@BANCOLOMBIA.CO