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

                                    FORM 13F

                              FORM 13F COVER PAGE


                  Report for the Quarter Ended September 30, 2003



                          AMERICAN FINANCIAL GROUP, INC.
                 One East Fourth Street, Cincinnati, Ohio 45202
     -------------------------------------------------------------------------
     (Name and Address of Institutional Investment Manager Filing this Report)


                         Form 13F File Number:  28-4389


The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

                                 Fred J. Runk
                     Senior Vice President and Treasurer
                                (513) 579-2489
                -----------------------------------------------
                (Name, Title and Phone Number of Person Signing
                 this Report on Behalf of Reporting Manager)



Signature:

Fred J. Runk                            Cincinnati, Ohio      November 13, 2003
----------------------------------
Fred J. Runk
Senior Vice President and Treasurer


Report Type:
     [X]  13F HOLDINGS REPORT.
     [ ]  13F NOTICE.
     [ ]  13F COMBINATION REPORT.








                                 Page 1 of 4


                            FORM 13F SUMMARY PAGE
                            ---------------------




Number of Other Included Managers:                        4
                                                      -----------

Form 13F Information Table Entry Total:                  78
                                                      -----------

Form 13F Information Table Value Total (thousands):   $ 1,087,170
                                                      -----------



Name and 13F file numbers of all Institutional Investment Managers with respect
to which this schedule is filed (other than American Financial Group, Inc.):

    Number       13F File Number         Name of Subsidiary
    ------       ---------------         ------------------------------------

       1.             28-5042             AFC Holding Company

       2.             28-497              American Financial Corporation

       3.             28-498              Great American Insurance Company

       4.             28-2414             American Premier Underwriters, Inc.


























                                     Page 2



                                                       FORM 13F INFORMATION TABLE


                                                             Column 4:   Column 5:                               Column 8:
                                   Column 2:                  Market     Shares or    Column 6: Column 7:    Voting Authority
        Column 1:                  Title of       Column 3:    Value     Principal   Investment    Other ---------------------------
     Name of Issuer                  Class          CUSIP     (000's)      Amount    Discretion Managers    Sole    Shared    None
     --------------             ---------------- ----------- ---------  ------------ ---------- -------- ---------- ------ ---------
HOLDINGS OF GREAT AMERICAN INSURANCE COMPANY
--------------------------------------------
                                                                                                
AOL TIME WARNER INC                   COM        00184A 10 5      395       26,149SH   Defined   1,2,3       26,149
AMERICAN ELEC PWR INC                 COM        025537 10 1    3,390      113,000SH   Defined     "        113,000
BANK OF AMERICA CORP                  COM        060505 10 4    7,351       94,200SH   Defined     "         94,200
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9      498       27,500SH   Defined     "         27,500
CHIQUITA BRANDS INTL INC        *W EXP 3/19/2009 170032 11 4    5,820    1,240,933SH   Defined     "                       1,240,933
COMCAST CORP NEW                     CL A        20030N 10 1      621       20,153SH   Defined     "         20,153
COMCAST CORP NEW                   CL A SPL      20030N 20 0    1,037       35,000SH   Defined     "                          35,000
CONAGRA FOODS INC                     COM        205887 10 2    1,740       81,900SH   Defined     "         81,900
DOMINION RES INC VA NEW               COM        25746U 10 9    3,900       63,000SH   Defined     "         63,000
DPL INC                               COM        233293 10 9    8,791      512,600SH   Defined     "        512,600
ENERGY EAST CORP                      COM        29266M 10 9    1,801       80,300SH   Defined     "         80,300
FIRSTENERGY CORP                      COM        337932 10 7    2,871       90,000SH   Defined     "         90,000
GREAT AMERN FINL RES INC              COM        389915 10 9  558,436   38,565,995SH   Defined     "     38,565,995
KEYCORP NEW                           COM        493267 10 8      225        8,800SH   Defined     "          8,800
KROGER CO                             COM        501044 10 1      134        7,500SH   Defined     "          7,500
MARSH SUPERMARKETS INC               CL B        571783 20 8    2,113      189,543SH   Defined     "                         189,543
MARSH SUPERMARKETS INC               CL A        571783 30 7    7,808      709,844SH   Defined     "        709,844
NATIONAL CITY CORP                    COM        635405 10 3    5,597      190,000SH   Defined     "        190,000
NISOURCE INC                          COM        65473P 10 5    2,697      135,000SH   Defined     "        135,000
PNC FINL SVCS GROUP INC               COM        693475 10 5    3,045       64,000SH   Defined     "         64,000
PEPCO HOLDINGS INC                    COM        713291 10 2    1,564       90,500SH   Defined     "         90,500
PROGRESS ENERGY INC                   COM        743263 10 5    7,558      170,000SH   Defined     "        170,000
PROVIDENT FINL GROUP INC              COM        743866 10 5  155,856    5,572,271SH   Defined     "      5,572,271
QWEST COMMUNICATIONS INTL INC         COM        749121 10 9       61       17,902SH   Defined     "         17,902
RCN CORP                              COM        749361 10 1       39       21,000SH   Defined     "         21,000
SBC COMMUNICATIONS INC                COM        78387G 10 3    1,335       60,000SH   Defined     "         60,000
SAFEWAY INC                         COM NEW      786514 20 8    1,172       51,100SH   Defined     "         51,100
SARA LEE CORP                         COM        803111 10 3      918       50,000SH   Defined     "         50,000
SEABULK INTL INC                      COM        81169P 10 1      529       72,499SH   Defined     "         72,499
SEPRACOR INC                          COM        817315 10 4    2,850      103,200SH   Defined     "        103,200
TENET HEALTHCARE CORP                 COM        88033G 10 0    1,303       90,000SH   Defined     "         90,000
TYCO INTL LTD NEW                     COM        902124 10 6    2,758      135,000SH   Defined     "        135,000
UNITED AUTO GROUP INC                 COM        909440 10 9      522       22,700SH   Defined     "         22,700
WALTER INDS INC                       COM        93317Q 10 5    1,273      118,600SH   Defined     "        118,600
WASHINGTON MUT INC                    COM        939322 10 3      793       20,134SH   Defined     "         20,134
WILTEL COMMUNICATNS GROUP IN          COM        972487 10 2    2,238      139,465SH   Defined     "        139,465


HOLDINGS OF AMERICAN PREMIER UNDERWRITERS, INC.
-----------------------------------------------
INFINITY PPTY & CAS CORP              COM        45665Q 10 3  220,677    7,850,465SH   Defined   1,2,4    7,850,465















HOLDINGS OF OTHER ENTITIES EACH HAVING LESS THAN $100 MILLION IN 13F SECURITIES
-------------------------------------------------------------------------------
AMERICAN ELEC PWR INC                 COM        025537 10 1      600       20,000SH    Other                                 20,000
BANK OF AMERICA CORP                  COM        060505 10 4        2           24SH   Defined   1,2             24
BRISTOL MYERS SQUIBB CO               COM        110122 10 8      257       10,000SH   Defined   1,2,3       10,000
BRISTOL MYERS SQUIBB CO               COM        110122 10 8      257       10,000SH    Other                                 10,000
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9    4,874      269,300SH   Defined   1,2,3      269,300
cABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9       54        2,977SH    Other                                  2,977
COMCAST CORP NEW                     CL A        20030N 10 1      456       14,800SH    Other                                 14,800
COMCAST CORP NEW                   CL A SPL      20030N 20 0      408       13,760SH    Other                                 13,760
CONAGRA FOODS INC                     COM        205887 10 2    2,549      120,000SH   Defined   1,2,3      120,000
DPL INC                               COM        233293 10 9    1,544       90,000SH   Defined     "         90,000
DPL INC                               COM        233293 10 9      172       10,000SH    Other                                 10,000
DOMINION RES INC VA NEW               COM        25746U 10 9    1,548       25,000SH   Defined   1,2,3       25,000
ENERGY EAST CORP                      COM        29266M 10 9    1,795       80,000SH   Defined     "         80,000
FIRSTENERGY CORP                      COM        337932 10 7    2,552       80,000SH   Defined   1,2,3,4     80,000
JOHN HANCOCK BK &THRIFT OPP       SH BEN INT     409735 10 7      603       67,200SH    Other                                 67,200
HOST MARRIOTT CORP NEW                COM        44107P 10 4      108       10,110SH    Other                                 10,110
KROGER CO                             COM        501044 10 1       45        2,500SH   Defined   1,2,3        2,500
LEUCADIA NATL CORP                    COM        527288 10 4      997       26,352SH   Defined   1,2         26,352
MARSH SUPERMARKETS INC               CL B        571783 20 8    4,606      413,101SH    Other                                413,101
METLIFE INC                           COM        59156R 10 8    1,378       49,115SH    Sole                 49,115
NATIONAL CITY CORP                    COM        635405 10 3    1,220       41,400SH   Defined   1,2,3       41,400
NISOURCE INC                          COM        65473P 10 5      599       30,000SH   Defined     "         30,000
NISOURCE INC                          COM        65473P 10 5      400       20,000SH    OTHER                                 20,000
PEPCO HOLDINGS INC                    COM        713291 10 2      346       20,000SH   Defined   1,2,3       20,000
POPULAR INC                           COM        733174 10 6    7,535      189,320SH   Defined     "        189,320
PROVIDENT FINL GROUP INC              COM        743866 10 5   13,977      499,704SH   Defined     "        499,704
PROVIDENT FINL GROUP INC              COM        743866 10 5    5,517      197,239SH    Other                                197,239
RCN CORP                              COM        749361 10 1       36       20,000SH   Defined   1,2,3       20,000
RCN CORP                              COM        749361 10 1       92       50,250SH    Other                                 50,250
SBC COMMUNICATIONS INC                COM        78387G 10 3      445       20,000SH   Defined   1,2,3       20,000
SANTANDER BANCORP                     COM        802809 10 3      568       30,250SH   Defined     "         30,250
SEABULK INTL INC                      COM        81169P 10 1    1,772      243,111SH   Defined     "        243,111
SEABULK INTL INC                      COM        81169P 10 1      714       98,000SH    Other                                 98,000
SEPRACOR INC                          COM        817315 10 4      221        8,000SH   Defined   1,2,3        8,000
TENET HEALTHCARE CORP                 COM        88033G 10 0    2,197      151,700SH   Defined     "        151,700
US BANCORP DEL                      COM NEW      902973 30 4      683       28,462SH    Other                                 28,462
UNITED AUTO GROUP INC                 COM        909440 10 9      239       10,400SH   Defined   1,2,3       10,400
WALTER INDS INC                       COM        93317Q 10 5    1,372      127,900SH   Defined     "        127,900
WASHINGTON MUT INC                    COM        939322 10 3    1,778       45,179SH   Defined     "         45,179
WILTEL COMMUNICATNS GROUP IN          COM        972487 10 2      187       11,636SH   Defined     "         11,636
ZENITH NATL INS CORP                  COM        989390 10 9    2,751       98,900SH    Other                                 98,900

                                                             ----------
                                 REPORT TOTAL                $1,087,170
                                                             ==========