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

                                    FORM 13F

                              FORM 13F COVER PAGE


                  Report for the Quarter Ended June 30, 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     August 12, 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: 3 ----------- Form 13F Information Table Entry Total: 110 ----------- Form 13F Information Table Value Total (thousands): $ 1,388,633 ----------- 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, Inc. 3. Unassigned Great American Life Insurance Company 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 - -------------------------------------------- GLOBAL CROSSING LTD SHS NEW G3921A 17 5 111 6,521SH Defined 1 6,521 ALLIANCE RES PARTNER L P UT LTD PART 01877R 10 8 1,110 15,000SH Defined " 15,000 ALPHA NATURAL RESOURCES INC COM 02076X 10 2 2,942 123,200SH Defined " 123,200 AMERICAN ELEC PWR INC COM 025537 10 1 3,060 83,000SH Defined " 83,000 AMERICAN INTL GROUP INC COM 026874 10 7 9,645 166,000SH Defined " 166,000 CV THERAPEUTICS INC COM 126667 10 4 1,682 75,000SH Defined " 75,000 CABLEVISION SYS CORP CL A NY CABLVS 12686C 10 9 3,284 102,000SH Defined " 102,000 CITIGROUP INC COM 172967 10 1 13,869 300,000SH Defined " 300,000 COMCAST CORP NEW CL A 20030N 10 1 618 20,153SH Defined " 20,153 COMCAST CORP NEW CL A SPL 20030N 20 0 1,640 54,760SH Defined " 54,760 DPL INC COM 233293 10 9 813 29,600SH Defined " 29,600 DORAL FINL CORP COM 25811P 10 0 191 11,550SH Defined " 11,550 ENERGY EAST CORP COM 29266M 10 9 733 25,300SH Defined " 25,300 FIFTH THIRD BANCORP COM 316773 10 0 6,405 155,563SH Defined " 155,563 GENTEK INC COM NEW 37245X 20 3 249 25,000SH Defined " 25,000 GREAT AMERN FINL RES INC COM 389915 10 9 763,992 38,565,995SH Defined " 38,565,995 INSTEEL INDUSTRIES INC COM 45774W 10 8 383 30,700SH Defined " 30,700 INTEGRATED ELECTRICAL SVC COM 45811E 10 3 546 280,000SH Defined " 280,000 JPMORGAN & CHASE & CO COM 46625H 10 0 4,592 130,000SH Defined " 130,000 MARSH SUPERMARKETS INC CL B 571783 20 8 8,552 602,644SH Defined " 602,644 MARSH SUPERMARKETS INC CL A 571783 30 7 9,334 709,844SH Defined " 709,844 MERCK & CO INC COM 589331 10 7 1,540 50,000SH Defined " 50,000 MITTAL STEEL CO N V NY REG SH CL A 60684P 10 1 678 28,568SH Defined " 28,568 NTL INC DEL COM 62940M 10 4 9,751 142,523SH Defined " 142,523 NATIONAL CITY CORP COM 635405 10 3 143,242 4,198,189SH Defined " 4,198,189 NATIONAL INTERSTATE CORP COM 63654U 10 0 202,776 10,200,000SH Defined " 10,200,000 NEWS CORP CL B 65248E 20 3 1,012 60,000SH Defined " 60,000 NISOURCE INC COM 65473P 10 5 964 39,000SH Defined " 39,000 PNC FINL SVCS GROUP INC COM 693475 10 5 3,485 64,000SH Defined " 64,000 PEPCO HOLDINGS INC COM 713291 10 2 970 40,500SH Defined " 40,500 PETROLEUM GEO SVCS ASA NEW SPONSORED ADR 716599 10 5 369 15,600SH Defined " 15,600 PFIZER INC COM 717081 10 3 8,964 325,000SH Defined " 325,000 PROGRESS ENERGY INC COM 743263 10 5 1,796 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 1,425 60,000SH Defined " 60,000 SANDISK CORP COM 80004C 10 1 1,187 50,000SH Defined " 50,000 SARA LEE CORP COM 803111 10 3 991 50,000SH Defined " 50,000 SEABULK INTL INC COM 81169P 10 1 273 12,856SH Defined " 12,856 SIRVA INC COM 82967Y 10 4 1,463 171,900SH Defined " 171,900 SUNTERRA CORP COM NEW 86787D 20 8 1,054 65,000SH Defined " 65,000 TIME WARNER INC COM 887317 10 5 437 26,149SH Defined " 26,149 TYCO INTL LTD NEW COM 902124 10 6 2,336 80,000SH Defined " 80,000 US BANCORP DEL COM NEW 902973 30 4 3,504 120,000SH Defined " 120,000 UNITED AUTO GROUP INC COM 909440 10 9 1,180 39,600SH Defined " 39,600 VIACOM INC CL B 925524 30 8 2,434 76,000SH Defined " 76,000 WASHINGTON MUT INC COM 939322 10 3 1,633 40,134SH Defined " 40,134 ZENITH NATL INS CORP COM 989390 10 9 1,676 24,700SH Defined " 24,700

HOLDINGS OF GREAT AMERICAN LIFE INSURANCE COMPANY - ------------------------------- ALLIANCE RES PARTNER L P UT LTD PART 01877R 10 8 3,730 50,402SH Defined 1,2,3 50,402 ALPHA NATURAL RESOURCES INC COM 02076X 10 2 2,961 124,000SH Defined " 124,000 AMERICAN INTL GROUP INC COM 026874 10 7 9,749 167,800SH Defined " 167,800 CV THERAPEUTICS INC COM 126667 10 4 2,063 92,000SH Defined " 92,000 CABLEVISION SYS CORP CL A NY CABLVS 12686C 10 9 7,148 222,000SH Defined " 222,000 CITIGROUP INC COM 172967 10 1 3,930 85,000SH Defined " 85,000 COMCAST CORP NEW CL A SPL 20030N 20 0 8,356 279,000SH Defined " 279,000 DORAL FINL CORP COM 25811P 10 0 255 15,440SH Defined " 15,440 FIFTH THIRD BANCORP COM 316773 10 0 6,550 159,100SH Defined " 159,100 GENTEK INC COM NEW 37245X 20 3 399 40,000SH Defined " 40,000 INSTEEL INDUSTRIES INC COM 45774W 10 8 4,192 336,134SH Defined " 336,134 INTEGRATED ELECTRICAL SVC COM 45811E 10 3 920 471,700SH Defined " 471,700 JPMORGAN & CHASE & CO COM 46625H 10 0 706 20,000SH Defined " 20,000 MITTAL STEEL CO N V NY REG SH CL A 60684P 10 1 1,351 56,925SH Defined " 56,925 NRG ENERGY INC COM NEW 629377 50 8 978 26,014SH Defined " 26,014 NTL INC DEL COM 62940M 10 4 21,351 312,065SH Defined " 312,065 NATIONAL CITY CORP COM 635405 10 3 2,805 82,203SH Defined " 82,203 NEWS CORP CL B 65248E 20 3 1,349 80,000SH Defined " 80,000 PETROLEUM GEO SVCS ASA NEW SPONSORED ADR 716599 10 5 504 21,300SH Defined " 21,300 PFIZER INC COM 717081 10 3 4,275 155,000SH Defined " 155,000 PIMCO HIGH INCOME FD COM SHS 722014 10 7 6,157 417,700SH Defined " 417,700 SANDISK CORP COM 80004C 10 1 1,187 50,000SH Defined " 50,000 SEABULK INTL INC COM 81169P 10 1 1,229 57,854SH Defined " 57,854 SIRVA INC COM 82967Y 10 4 2,094 246,100SH Defined " 246,100 SUNTERRA CORP COM NEW 86787D 20 8 2,432 150,000SH Defined " 150,000 TYCO INTL LTD NEW COM 902124 10 6 5,694 195,000SH Defined " 195,000 US BANCORP DEL COM NEW 902973 30 4 3,504 120,000SH Defined " 120,000 UNITED AUTO GROUP INC COM 909440 10 9 1,737 58,300SH Defined " 58,300 VIACOM INC CL B 925524 30 8 5,796 181,000SH Defined " 181,000

HOLDINGS OF OTHER ENTITIES EACH HAVING LESS THAN $100 MILLION IN 13F SECURITIES - ------------------------------ GLOBAL CROSSING LTD SHS NEW G3921A 17 5 243 14,224SH Defined 1,2 14,224 ALLIANCE RES PARTNER L P UT LTD PART 01877R 10 8 1,554 21,000SH Other 21,000 ALPHA NATURAL RESOURCES INC COM 02076X 10 2 2,101 88,000SH Other 88,000 BRISTOL MYERS SQUIBB CO COM 110122 10 8 250 10,000SH Defined 1 10,000 BRISTOL MYERS SQUIBB CO COM 110122 10 8 250 10,000SH Other 10,000 CV THERAPEUTICS INC COM 126667 10 4 448 20,000SH Other 20,000 CABLEVISION SYS CORP CL A NY CABLVS 12686C 10 9 2,898 90,000SH Other 90,000 CITIGROUP INC COM 172967 10 1 2,080 45,000SH Other 45,000 DPL INC COM 233293 10 9 209 7,600SH Defined 1 7,600 DORAL FINL CORP COM 25811P 10 0 153 9,210SH Defined 1,2,3 9,210 ENERGY EAST CORP COM 29266M 10 9 725 25,000SH Defined 1 25,000 FIFTH THIRD BANCORP COM 316773 10 0 2,758 67,000SH Other 67,000 JOHN HANCOCK BK &THRIFT OPP SH BEN INT 409735 10 7 660 67,200SH Other 67,200 HOST MARRIOTT CORP NEW COM 44107P 10 4 177 10,110SH Other 10,110 JPMORGAN & CHASE & CO COM 46625H 10 0 1,766 50,000SH Other 50,000 LAIDLAW INTL INC COM 50730R 10 2 1,652 68,543SH Defined 1,2 68,543 MERCK & CO INC COM 589331 10 7 308 10,000SH Defined 1 10,000 MITTAL STEEL CO N V NY REG SH CL A 60684P 10 1 2,137 90,000SH Other 90,000 NTL INC DEL COM 62940M 10 4 4,421 64,618SH Other 64,618 NATIONAL CITY CORP COM 635405 10 3 2,605 76,359SH Defined 1,2,3 76,359 NATIONAL CITY CORP COM 635405 10 3 1,419 41,603SH Other 41,603 NRG ENERGY INC COM NEW 629377 50 8 654 17,397SH Defined 1,2,3 17,397 NISOURCE INC COM 65473P 10 5 148 6,000SH Defined 1 6,000 PEPCO HOLDINGS INC COM 713291 10 2 239 10,000SH Defined " 10,000 PFIZER INC COM 717081 10 3 275 10,000SH Defined 1,2,3 10,000 PFIZER INC COM 717081 10 3 2,206 80,000SH Other 80,000 SBC COMMUNICATIONS INC COM 78387G 10 3 475 20,000SH Defined 1 20,000 SANTANDER BANCORP COM 802809 10 3 834 33,275SH Defined 1,2 33,275 SEABULK INTL INC COM 81169P 10 1 417 19,600SH Sole 19,600 SEABULK INTL INC COM 81169P 10 1 836 39,316SH Defined 1,2,3 39,316 TYCO INTL LTD NEW COM 902124 10 6 3,796 130,000SH Other 130,000 US BANCORP DEL COM NEW 902973 30 4 1,999 68,462SH Other 68,462 VIACOM INC CL B 925524 30 8 3,336 104,200SH Other 104,200 WASHINGTON MUT INC COM 939322 10 3 2,245 55,179SH Defined 1 55,179 ---------- REPORT TOTAL $1,388,633 ==========