UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C.  20549
                                       
                                    FORM 13F
                                       
                              FORM 13F COVER PAGE


                  Report for the Quarter Ended March 31, 2005



                          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.

                                 Robert H. Ruffing
                     	   Vice President and Controller
                                   (513) 579-2144
                -----------------------------------------------
                (Name, Title and Phone Number of Person Signing
                 this Report on Behalf of Reporting Manager)



Signature:

s/Robert H. Ruffing                        Cincinnati, Ohio     May 11, 2005
----------------------------------
Robert H. Ruffing
Vice President and Controller


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








                                 Page 1 of 4


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




Number of Other Included Managers:                        2
                                                      -----------

Form 13F Information Table Entry Total:                  95
                                                      -----------

Form 13F Information Table Value Total (thousands):   $ 1,225,948 
                                                      -----------



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.          28-498             Great American Insurance Company
       2.        Unassigned           Great American Financial Resources
       



































                                     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
--------------------------------------------
                                                                                                
ENDURANCE SPECIALTY HLDGS LT          SHS        G30397 10 6   15,514      410,000SH   Defined     1        410,000
GLOBAL CROSSING LTD		    SHS NEW      G3921A 17 5      101        6,521SH   Defined     "          6,521
AMERICAN ELEC PWR INC                 COM        025537 10 1    2,827       83,000SH   Defined     "         83,000
AMERICAN INTL GROUP INC               COM        026874 10 7    9,198      166,000SH   Defined     "        166,000
CV THERAPEUTICS INC                   COM        126667 10 4    1,527       75,000SH   Defined     "         75,000
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9    1,403       50,000SH   Defined     "         50,000
CITIGROUP INC                         COM        172967 10 1   13,482      300,000SH   Defined     "        300,000
COMCAST CORP NEW                     CL A        20030N 10 1      681       20,153SH   Defined     "         20,153
COMCAST CORP NEW                   CL A SPL      20030N 20 0    1,831       54,760SH   Defined     "         54,760
DPL INC                               COM        233293 10 9    5,440      217,600SH   Defined     "        217,600 
ENERGY EAST CORP                      COM        29266M 10 9    2,105       80,300SH   Defined     "         80,300               
FIFTH THIRD BANCORP                   COM        316773 10 0    6,256      145,563SH   Defined     "        145,563
GENTEK INC                          COM NEW      37245X 20 3      412       25,000SH   Defined     "         25,000
GREAT AMERN FINL RES INC              COM        389915 10 9  653,308   38,565,995SH   Defined     "     38,565,995
INTEGRATED ELECTRICAL SVC             COM        45811E 10 3      552      200,000SH   Defined     "        200,000
INTERNATIONAL STL GROUP INC           COM        460377 10 4      881       22,300SH   Defined     "         22,300
JPMORGAN & CHASE & CO                 COM        46625H 10 0    4,498      130,000SH   Defined     "        130,000
MARSH SUPERMARKETS INC               CL B        571783 20 8    7,443      602,644SH   Defined     "        602,644
MARSH SUPERMARKETS INC               CL A        571783 30 7    7,879      709,844SH   Defined     "        709,844
MERCK & CO INC                        COM        589331 10 7    1,619       50,000SH   Defined	   "         50,000
NTL INC DEL                           COM        62940M 10 4    9,074      142,523SH   Defined     "        142,523
NATIONAL CITY CORP                    COM        635405 10 3  140,639    4,198,189SH   Defined     "      4,198,189
NATIONAL INTERSTATE CORP              COM        63654U 10 0  171,360   10,200,000SH   Defined     "     10,200,000
NEWS CORP                            CL B        65248E 20 3    1,057       60,000SH   Defined     "         60,000
NISOURCE INC                          COM        65473P 10 5    3,532      155,000SH   Defined     "        155,000
PNC FINL SVCS GROUP INC               COM        693475 10 5    3,295       64,000SH   Defined     "         64,000
PEPCO HOLDINGS INC                    COM        713291 10 2      850       40,500SH   Defined     "         40,500
PETROLEUM GEO SVCS ASA NEW       SPONSORED ADR   716599 10 5      672       10,000SH   Defined     "         10,000
PFIZER INC                            COM        717081 10 3    8,538      325,000SH   Defined	   "        325,000
PROGRESS ENERGY INC                   COM        743263 10 5    1,665       39,700SH   Defined     "         39,700
QWEST COMMUNICATIONS INTL IN          COM        749121 10 9       66       17,902SH   Defined     "         17,902
SBC COMMUNICATIONS INC                COM        78387G 10 3    1,421       60,000SH   Defined     "         60,000
SANDISK CORP                   	      COM        80004C 10 1    1,390       50,000SH   Defined     "         50,000
SARA LEE CORP                         COM        803111 10 3    1,108       50,000SH   Defined     "         50,000
SEABULK INTL INC                      COM        81169P 10 1      883       42,456SH   Defined     "         42,456
SIRVA INC                             COM        82967Y 10 4    1,841      259,000SH   Defined     "        259,000
SUNTERRA CORP                       COM NEW      86787D 20 8      980       65,000SH   Defined     "         65,000
TIME WARNER INC                       COM        887317 10 5      459       26,149SH   Defined     "         26,149  
TYCO INTL LTD NEW                     COM        902124 10 6    1,521       45,000SH   Defined     "         45,000
UNITED AUTO GROUP INC                 COM        909440 10 9    1,102       39,600SH   Defined     "         39,600
VIACOM INC                           CL B        925524 30 8    1,567       45,000SH   Defined     "         45,000
WASHINGTON MUT INC                    COM        939322 10 3    1,585       40,134SH   Defined     "         40,134
ZENITH NATL INS CORP                  COM        989390 10 9    1,281       24,700SH   Defined     "         24,700 











HOLDINGS OF OTHER ENTITIES EACH HAVING LESS THAN $100 MILLION IN 13F SECURITIES
-------------------------------------------------------------------------------

GLOBAL CROSSING LTD                 SHS NEW      G3921A 17 5      221       14,224SH   Defined    1,2        14,224
AMERICAN INTL GROUP INC               COM        026874 10 7    9,298      167,800SH   Defined     "        167,800 
BRISTOL MYERS SQUIBB CO               COM        110122 10 8      255       10,000SH   Defined     1         10,000     
BRISTOL MYERS SQUIBB CO               COM        110122 10 8      255       10,000SH    Other                                10,000
CV THERAPEUTICS INC                   COM        126667 10 4    1,873       92,000SH   Defined    1,2        92,000
CV THERAPEUTICS INC                   COM        126667 10 4      407       20,000SH    Other                                20,000
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9    4,488      160,000SH   Defined    1,2       160,000            
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9      281       10,000SH    Other                                10,000
CITIGROUP INC                         COM        172967 10 1    3,820       85,000SH   Defined    1,2        85,000
CITIGROUP INC                         COM        172967 10 1    2,022       45,000SH    Other                                45,000
COMCAST CORP NEW                   CL A SPL      20030N 20 0    9,330      279,000SH   Defined    1,2       279,000   
DPL INC                               COM        233293 10 9    1,250       50,000SH   Defined     1         50,000  
DPL INC                               COM        233293 10 9      250       10,000SH    Other                                10,000
ENERGY EAST CORP                      COM        29266M 10 9    2,098       80,000SH   Defined     1         80,000
FIFTH THIRD BANCORP                   COM        316773 10 0    6,408      149,100SH   Defined    1,2       149,100      
FIFTH THIRD BANCORP                   COM        316773 10 0    2,579       60,000SH    Other                                60,000
GENTEK INC                          COM NEW      37245X 20 3      660       40,000SH   Defined    1,2        40,000
JOHN HANCOCK BK &THRIFT OPP       SH BEN INT     409735 10 7      650       67,200SH    Other                                67,200
HOST MARRIOTT CORP NEW                COM        44107P 10 4      167       10,110SH    Other                                10,110
INSTEEL INDUSTRIES INC                COM        45774W 10 8    1,610      107,172SH   Defined    1,2       107,172
INTEGRATED ELECTRICAL SVC             COM        45811E 10 3      946      342,800SH   Defined     "        342,800
INTERNATIONAL STL GROUP INC           COM        460377 10 4    3,081       78,000SH   Defined     "         78,000
JPMORGAN & CHASE & CO                 COM        46625H 10 0      692       20,000SH   Defined     "         20,000
JPMORGAN & CHASE & CO                 COM        46625H 10 0    1,730       50,000SH    Other                                50,000
LAIDLAW INTL INC                      COM        50730R 10 2    1,426       68,543SH   Defined    1,2        68,543
MERCK & CO INC	                      COM        589331 10 7      324       10,000SH   Defined     1         10,000
NRG ENERGY INC                      COM NEW      629377 50 8    1,482       43,411SH   Defined    1,2        43,411
NTL INC DEL                           COM        62940M 10 4   19,869      312,065SH   Defined     "        312,065
NTL INC DEL                           COM        62940M 10 4    1,886       29,618SH    Other                                29,618
NATIONAL CITY CORP                    COM        635405 10 3    5,312      158,562SH   Defined    1,2       158,562
NATIONAL CITY CORP                    COM        635405 10 3    1,394       41,603SH    Other                                41,603
NEWS CORP                            CL B        65248E 20 3    1,409       80,000SH   Defined    1,2        80,000
NISOURCE INC                          COM        65473P 10 5      684       30,000SH   Defined     1         30,000
PEPCO HOLDINGS INC                    COM        713291 10 2      210       10,000SH   Defined     "         10,000
PETROLEUM GEO SVCS ASA NEW       SPONSORED ADR   716599 10 5    1,008       15,000SH   Defined    1,2        15,000
PFIZER INC                            COM        717081 10 3    4,334      165,000SH   Defined     "        165,000
PFIZER INC                            COM        717081 10 3    2,102       80,000SH    Other                                80,000
PIMCO HIGH INCOME FD                COM SHS      722014 10 7    5,881      417,700SH   Defined    1,2       417,700
POPULAR INC                           COM        733174 10 6    9,209      378,640SH   Defined     "        378,640
SBC COMMUNICATIONS INC                COM        78387G 10 3      474       20,000SH   Defined     1         20,000
SANDISK CORP                          COM        80004C 10 1    1,390       50,000SH   Defined    1,2        50,000
SANTANDER BANCORP                     COM        802809 10 3      876       33,275SH   Defined     "         33,275
SEABULK INTL INC                      COM        81169P 10 1      407       19,600SH    Sole                 19,600          
SEABULK INTL INC                      COM        81169P 10 1    2,969      142,820SH   Defined    1,2       142,820          
SIRVA INC                             COM        82967Y 10 4    2,589      364,100SH   Defined     "        364,100
SUNTERRA CORP                       COM NEW      86787D 20 8    2,262      150,000SH   Defined     "        150,000
US BANCORP DEL                      COM NEW      902973 30 4      820       28,462SH    Other                                28,462
UNITED AUTO GROUP INC                 COM        909440 10 9    1,622       58,300SH   Defined    1,2        58,300
VIACOM INC                           CL B        925524 30 8    5,225      150,000SH   Defined     "        150,000
VIACOM INC                           CL B        925524 30 8      871       25,000SH    Other                                25,000
WASHINGTON MUT INC                    COM        939322 10 3    2,180       55,179SH   Defined     1         55,179
ZENITH NATL INS CORP                  COM        989390 10 9      519       10,000SH    Other                                10,000

                                                             ----------
                                 REPORT TOTAL                $1,225,948
                                                             ==========