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

                                    FORM 13F

                              FORM 13F COVER PAGE


                  Report for the Quarter Ended - December 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     February 13, 2006
- -------------------------------
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: 121 ----------- Form 13F Information Table Value Total (thousands): $ 1,358,550 ----------- 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 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 5 105 6,521SH Defined 1 6,521 AT&T INC COM 00206R 10 2 1,483 60,555SH Defined " 60,555 ALLIANCE RES PARTNER L P UT LTD PART 01877R 10 8 484 13,000SH Defined " 13,000 ALPHA NATURAL RESOURCES INC COM 02076X 10 2 5,062 263,500SH Defined " 263,500 ARCHER DANIELS MIDLAND CO COM 039483 10 2 1,628 66,000SH Defined " 66,000 BOSTON SCIENTIFIC CORP COM 101137 10 7 4,139 169,000SH Defined " 169,000 CBS CORP NEW CL B 124857 20 2 1,034 43,000SH Defined " 43,000 CV THERAPEUTICS INC COM 126667 10 4 1,855 75,000SH Defined " 75,000 CABLEVISION SYS CORP CL A NY CABLVS 12686C 10 9 5,210 222,000SH Defined " 222,000 CITIGROUP INC COM 172967 10 1 16,743 345,000SH Defined " 345,000 COMCAST CORP NEW CL A 20030N 10 1 522 20,153SH Defined " 20,153 COMCAST CORP NEW CL A SPL 20030N 20 0 3,719 144,760SH Defined " 144,760 DISNEY WALT CO COM DISNEY 254687 10 6 6,544 273,000SH Defined " 273,000 DORAL FINL CORP COM 25811P 10 0 122 11,550SH Defined " 11,550 ENERGY EAST CORP COM 29266M 10 9 463 20,300SH Defined " 20,300 FEDERAL NATL MTG ASSN COM 313586 10 9 3,905 80,000SH Defined " 80,000 FIFTH THIRD BANCORP COM 316773 10 0 3,831 101,563SH Defined " 101,563 FIRST MARBLEHEAD CORP COM 320771 10 8 1,314 40,000SH Defined " 40,000 FLAGSTAR BANCORP INC COM 337930 10 1 2,376 165,000SH Defined " 165,000 FLEETWOOD ENTERPRISES INC COM 339099 10 3 642 52,000SH Defined " 52,000 GENTEK INC COM NEW 37245X 20 3 447 25,000SH Defined " 25,000 GREAT AMERN FINL RES INC COM 389915 10 9 765,149 38,565,995SH Defined " 38,565,995 INSTEEL INDUSTRIES INC COM 45774W 10 8 558 33,700SH Defined " 33,700 JP MORGAN CHASE & CO COM 46625H 10 0 5,160 130,000SH Defined " 130,000 JOHNSON & JOHNSON COM 478160 10 4 1,202 20,000SH Defined " 20,000 MARSH SUPERMARKETS INC CL B 571783 20 8 4,157 479,444SH Defined " 479,444 MARSH SUPERMARKETS INC CL A 571783 30 7 5,058 577,358SH Defined " 577,358 MERCK & CO INC COM 589331 10 7 1,591 50,000SH Defined " 50,000 MITTAL STEEL CO N V NY REG SH CL A 60684P 10 1 3,254 123,568SH Defined " 123,568 NTL INC DEL COM 62940M 10 4 11,065 162,523SH Defined " 162,523 NATIONAL CITY CORP COM 635405 10 3 89,813 2,675,392SH Defined " 2,675,392 NATIONAL INTERSTATE CORP COM 63654U 10 0 194,514 10,200,000SH Defined " 10,200,000 NEWS CORP CL A 65248E 10 4 1,944 125,000SH Defined " 125,000 NEWS CORP CL B 65248E 20 3 2,741 165,000SH Defined " 165,000 PEPCO HOLDINGS INC COM 713291 10 2 906 40,500SH Defined " 40,500 PFIZER INC COM 717081 10 3 9,678 415,000SH Defined " 415,000 QWEST COMMUNICATIONS INTL IN COM 749121 10 9 101 17,902SH Defined " 17,902 SARA LEE CORP COM 803111 10 3 945 50,000SH Defined " 50,000 SEACOR HOLDINGS INC COM 811904 10 1 236 3,463SH Defined " 3,463 SUNTERRA CORP COM NEW 86787D 20 8 924 65,000SH Defined " 65,000 TIME WARNER INC COM 887317 10 5 456 26,149SH Defined " 26,149 TORTOISE ENERGY CAP CORP COM 89147U 10 0 574 25,800SH Defined " 25,800 TYCO INTL LTD NEW COM 902124 10 6 2,597 90,000SH Defined " 90,000 US BANCORP DEL COM NEW 902973 30 4 1,883 63,000SH Defined " 63,000 VIACOM INC CL B 92553P 20 1 1,769 43,000SH Defined " 43,000 ZENITH NATL INS CORP COM 989390 10 9 1,709 37,050SH Defined " 37,050

HOLDINGS OF GREAT AMERICAN LIFE INSURANCE COMPANY - ------------------------------------------------- ALLIANCE RES PARTNER L P UT LTD PART 01877R 10 8 1,902 51,124SH Defined 1,2,3 51,124 ALPHA NATURAL RESOURCES INC COM 02076X 10 2 5,796 301,700SH Defined " 301,700 ARCHER DANIELS MIDLAND CO COM 039483 10 2 1,628 66,000SH Defined " 66,000 BOSTON SCIENTIFIC CORP COM 101137 10 7 4,212 172,000SH Defined " 172,000 CBS CORP NEW CL B 124857 20 2 2,297 95,500SH Defined " 95,500 CV THERAPEUTICS INC COM 126667 10 4 2,275 92,000SH Defined " 92,000 CABLEVISION SYS CORP CL A NY CABLVS 12686C 10 9 8,027 342,000SH Defined " 342,000 CITIGROUP INC COM 172967 10 1 5,338 110,000SH Defined " 110,000 COMCAST CORP NEW CL A SPL 20030N 20 0 9,480 369,000SH Defined " 369,000 DISNEY WALT CO COM DISNEY 254687 10 6 6,544 273,000SH Defined " 273,000 DORAL FINL CORP COM 25811P 10 0 164 15,440SH Defined " 15,440 FEDERAL NATL MTG ASSN COM 313586 10 9 3,905 80,000SH Defined " 80,000 FIFTH THIRD BANCORP COM 316773 10 0 3,776 100,100SH Defined " 100,100 FIRST MARBLEHEAD CORP COM 320771 10 8 1,397 42,500SH Defined " 42,500 FLAGSTAR BANCORP INC COM 337930 10 1 2,376 165,000SH Defined " 165,000 FLEETWOOD ENTERPRISES INC COM 339099 10 3 963 78,000SH Defined " 78,000 GENTEK INC COM NEW 37245X 20 3 715 40,000SH Defined " 40,000 INSTEEL INDUSTRIES INC COM 45774W 10 8 5,603 338,134SH Defined " 338,134 JP MORGAN CHASE & CO COM 46625H 10 0 794 20,000SH Defined " 20,000 JOHNSON & JOHNSON COM 478160 10 4 1,202 20,000SH Defined " 20,000 MITTAL STEEL CO N V NY REG SH CL A 60684P 10 1 3,474 131,925SH Defined " 131,925 NRG ENERGY INC COM NEW 629377 50 8 1,226 26,014SH Defined " 26,014 NTL INC DEL COM 62940M 10 4 22,607 332,065SH Defined " 332,065 NEWS CORP CL A 65248E 10 4 1,944 125,000SH Defined " 125,000 NEWS CORP CL B 65248E 20 3 3,073 185,000SH Defined " 185,000 NUVEEN FLTNG RTE INCM OPP FD COM SHS 6706EN 10 0 978 78,300SH Defined " 78,300 PFIZER INC COM 717081 10 3 6,646 285,000SH Defined " 285,000 PIMCO HIGH INCOME FD COM SHS 722014 10 7 2,523 172,800SH Defined " 172,800 SEACOR HOLDINGS INC COM 811904 10 1 721 10,585SH Defined " 10,585 SUNTERRA CORP COM NEW 86787D 20 8 2,133 150,000SH Defined " 150,000 TORTOISE ENERGY CAP CORP COM 89147U 10 0 2,680 120,500SH Defined " 120,500 TYCO INTL LTD NEW COM 902124 10 6 5,916 205,000SH Defined " 205,000 US BANCORP DEL COM NEW 902973 30 4 1,853 62,000SH Defined " 62,000 VIACOM INC NEW CL B 92553P 20 1 3,930 95,500SH Defined " 95,500

HOLDINGS OF OTHER ENTITIES EACH HAVING LESS THAN $100 MILLION IN 13F SECURITIES - ------------------------------ GLOBAL CROSSING LTD SHS NEW G3921A 17 5 228 14,224SH Defined 1,2,3 14,224 AT&T INC COM 00206R 10 2 490 20,000SH Defined 1 20,000 ALLIANCE RES PARTNER L P UT LTD PART 01877R 10 8 744 20,000SH Other 20,000 ALPHA NATURAL RESOURCES INC COM 02076X 10 2 768 40,000SH Defined 1 40,000 ALPHA NATURAL RESOURCES INC COM 02076X 10 2 3,035 158,000SH Other 158,000 ARCHER DANIELS MIDLAND CO COM 039483 10 2 1,060 43,000SH Other 43,000 BOSTON SCIENTIFIC CORP COM 101137 10 7 3,747 153,000SH Other 153,000 BRISTOL MYERS SQUIBB CO COM 110122 10 8 230 10,000SH Defined 1 10,000 BRISTOL MYERS SQUIBB CO COM 110122 10 8 230 10,000SH Other 10,000 CBS CORP NEW CL B 124857 20 2 1,373 57,100SH Other 57,100 CV THERAPEUTICS INC COM 126667 10 4 495 20,000SH Other 20,000 CABLEVISION SYS CORP CL A NY CABLVS 12686C 10 9 3,051 130,000SH Other 130,000 CITIGROUP INC COM 172967 10 1 3,640 75,000SH Other 75,000 COMCAST CORP NEW CL A SPL 20030N 20 0 1,413 55,000SH Other 55,000 DISNEY WALT CO COM DISNEY 254687 10 6 4,434 185,000SH Other 185,000 DORAL FINL CORP COM 25811P 10 0 98 9,210SH Defined 1,2,3 9,210 ENERGY EAST CORP COM 29266M 10 9 456 20,000SH Defined 1 20,000 FEDERAL NATL MTG ASSN COM 313586 10 9 2,441 50,000SH Other 50,000 FIFTH THIRD BANCORP COM 316773 10 0 1,697 45,000SH Other 45,000 JOHN HANCOCK BK &THRIFT OPP SH BEN INT 409735 10 7 625 67,200SH Other 67,200 HOST MARRIOTT CORP NEW COM 44107P 10 4 192 10,110SH Other 10,110 JP MORGAN CHASE & CO COM 46625H 10 0 1,985 50,000SH Other 50,000 JOHNSON & JOHNSON COM 478160 10 4 1,202 20,000SH Other 20,000 LAIDLAW INTL INC COM 50730R 10 2 1,592 68,543SH Defined 1,2,3 68,543 MERCK & CO INC COM 589331 10 7 318 10,000SH Defined 1 10,000 MITTAL STEEL CO N V NY REG SH CL A 60684P 10 1 1,580 60,000SH Other 60,000 NRG ENERGY INC COM NEW 629377 50 8 820 17,397SH Defined 1,2,3 17,397 NTL INC DEL COM 62940M 10 4 5,080 74,618SH Other 74,618 NATIONAL CITY CORP COM 635405 10 3 2,563 76,359SH Defined 1 76,359 NATIONAL CITY CORP COM 635405 10 3 433 12,903SH Other 12,903 NEWS CORP CL A 65248E 10 4 622 40,000SH Other 40,000 NEWS CORP CL B 65248E 20 3 332 20,000SH Other 20,000 PEPCO HOLDINGS INC COM 713291 10 2 224 10,000SH Defined 1 10,000 PFIZER INC COM 717081 10 3 1,283 55,000SH Defined " 55,000 PFIZER INC COM 717081 10 3 3,381 145,000SH Other 145,000 SANTANDER BANCORP COM 802809 10 3 836 33,275SH Defined 1,2,3 33,275 SEACOR HOLDINGS INC COM 811904 10 1 381 5,591SH Defined 1 5,591 SEACOR HOLDINGS INC COM 811904 10 1 360 5,280SH Sole 5,280 TYCO INTL LTD NEW COM 902124 10 6 3,752 130,000SH Other 130,000 US BANCORP DEL COM NEW 902973 30 4 1,299 43,462SH Other 43,462 VIACOM INC NEW CL B 92553P 20 1 2,350 57,100SH Other 57,100 ---------- REPORT TOTAL $1,358,550 ==========