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

                                    FORM 13F

                              FORM 13F COVER PAGE


                  Report for the Quarter Ended March 31, 2006



                          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 10, 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:                   132
                                                      -----------

Form 13F Information Table Value Total (thousands):   $ 1,403,010
                                                      -----------



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      173        6,521SH   Defined     1          6,521
AT&T INC		              COM 	 00206R 10 2	1,637       60,555SH   Defined     "         60,555
ALLIANCE RES PARTNER L P          UT LTD PART    01877R 10 8      469       13,000SH   Defined     "         13,000
ALPHA NATURAL RESOURCES INC           COM        02076X 10 2    6,097      263,500SH   Defined     "        263,500
ARCHER DANIELS MIDLAND CO             COM        039483 10 2    3,062       91,000SH   Defined     "         91,000
BOSTON SCIENTIFIC CORP                COM        101137 10 7    4,241      184,000SH   Defined     "        184,000
CBS CORP NEW                         CL B        124857 20 2    1,031       43,000SH   Defined     "         43,000
CV THERAPEUTICS INC                   COM        126667 10 4    1,038       47,000SH   Defined     "         47,000
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9    5,927      222,000SH   Defined     "        222,000
CITIGROUP INC                         COM        172967 10 1   16,294      345,000SH   Defined     "        345,000
COMCAST CORP NEW                     CL A        20030N 10 1      527       20,153SH   Defined     "         20,153
COMCAST CORP NEW                   CL A SPL      20030N 20 0    3,781      144,760SH   Defined     "        144,760
DISNEY WALT CO                    COM DISNEY     254687 10 6    7,614      273,000SH   Defined     "        273,000
DORAL FINL CORP                       COM        25811P 10 0      133       11,550SH   Defined     "         11,550
ENERGY EAST CORP                      COM        29266M 10 9      493       20,300SH   Defined     "         20,300
FEDERAL NATL MTG ASSN		      COM        313586 10 9    3,033       59,000SH   Defined     "         59,000
FIFTH THIRD BANCORP                   COM        316773 10 0    2,069       52,563SH   Defined     "         52,563
FLAGSTAR BANCORP INC                  COM        337930 10 1    2,492      165,000SH   Defined     "        165,000
FLEETWOOD ENTERPRISES INC             COM        339099 10 3      187       16,700SH   Defined     "         16,700
GENTEK INC                          COM NEW      37245X 20 3      110        5,300SH   Defined     "          5,300
GREAT AMERN FINL RES INC              COM        389915 10 9  760,907   38,565,995SH   Defined     "     38,565,995
JP MORGAN CHASE & CO                  COM        46625H 10 0    1,457       35,000SH   Defined     "         35,000
JOHNSON & JOHNSON                     COM        478160 10 4    3,553       60,000SH   Defined     "         60,000
M D C HLDGS INC                       COM        552676 10 8      720       11,200SH   Defined     "         11,200
MARSH SUPERMARKETS INC               CL B        571783 20 8    3,955      479,444SH   Defined     "        479,444
MARSH SUPERMARKETS INC               CL A        571783 30 7    5,248      577,358SH   Defined     "        577,358
MERCK & CO INC                        COM        589331 10 7    1,762       50,000SH   Defined	   "         50,000
MITTAL STEEL CO N V             NY REG SH CL A   60684P 10 1    1,229       32,568SH   Defined     "         32,568
NTL INC NEW                           COM        62941W 10 1   11,828      406,307SH   Defined     "        406,307
NATIONAL CITY CORP                    COM        635405 10 3   93,371    2,675,392SH   Defined     "      2,675,392
NATIONAL INTERSTATE CORP              COM        63654U 10 0  221,850   10,200,000SH   Defined     "     10,200,000
NEWS CORP                            CL A        65248E 10 4    2,076      125,000SH   Defined     "        125,000
NEWS CORP                            CL B        65248E 20 3    2,897      165,000SH   Defined     "        165,000
PEPCO HOLDINGS INC                    COM        713291 10 2      923       40,500SH   Defined     "         40,500
PFIZER INC                            COM        717081 10 3   10,342      415,000SH   Defined	   "        415,000
PULTE HOMES INC                       COM        745867 10 1    1,153       30,000SH   Defined     "         30,000
QWEST COMMUNICATIONS INTL IN          COM        749121 10 9      122       17,902SH   Defined     "         17,902
SARA LEE CORP                         COM        803111 10 3      894       50,000SH   Defined     "         50,000
SEACOR HOLDINGS INC                   COM        811904 10 1      274        3,463SH   Defined     "          3,463
SPRINT NEXTEL CORP                  COM FON      852061 10 0    5,752      222,600SH   Defined     "        222,600
SUNTERRA CORP                       COM NEW      86787D 20 8      928       65,000SH   Defined     "         65,000
TIME WARNER INC                       COM        887317 10 5      439       26,149SH   Defined     "         26,149
TOLL BROTHERS INC                     COM        889478 10 3    1,108       32,000SH   Defined     "         32,000
TORTOISE ENERGY CAP CORP              COM        89147U 10 0      586       25,800SH   Defined     "         25,800
TYCO INTL LTD NEW                     COM        902124 10 6    5,309      197,500SH   Defined     "        197,500
UAL CORP                            COM NEW      902549 80 7      937       23,469SH   Defined     "         23,469
US BANCORP DEL                      COM NEW      902973 30 4    1,342       44,000SH   Defined     "         44,000
VIACOM INC NEW                       CL B        92553P 20 1    1,668       43,000SH   Defined     "         43,000
ZENITH NATL INS CORP                  COM        989390 10 9    1,783       37,050SH   Defined     "         37,050






HOLDINGS OF GREAT AMERICAN
LIFE INSURANCE COMPANY
--------------------------
ALLIANCE RES PARTNER L P          UT LTD PART    01877R 10 8    1,846       51,124SH   Defined   1,2,3       51,124
ALPHA NATURAL RESOURCES INC           COM        02076X 10 2    6,981      301,700SH   Defined     "        301,700
ARCHER DANIELS MIDLAND CO             COM        039483 10 2    3,062       91,000SH   Defined     "         91,000
BOSTON SCIENTIFIC CORP                COM        101137 10 7    4,310      187,000SH   Defined     "        187,000
CBS CORP NEW                         CL B        124857 20 2    2,290       95,500SH   Defined     "         95,500
CV THERAPEUTICS INC                   COM        126667 10 4    1,259       57,000SH   Defined     "         57,000
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9    9,131      342,000SH   Defined     "        342,000
CITIGROUP INC                         COM        172967 10 1    5,195      110,000SH   Defined     "        110,000
COMCAST CORP NEW                   CL A SPL      20030N 20 0    9,638      369,000SH   Defined     "        369,000
DISNEY WALT CO                    COM DISNEY     254687 10 6    7,614      273,000SH   Defined     "        273,000
DORAL FINL CORP                       COM        25811P 10 0      178       15,440SH   Defined     "         15,440
FEDERAL NATL MTG ASSN	              COM        313586 10 9    3,033       59,000SH   Defined     "         59,000
FIFTH THIRD BANCORP                   COM        316773 10 0    2,011       51,100SH   Defined     "         51,100
FLAGSTAR BANCORP INC                  COM        337930 10 1    2,492      165,000SH   Defined     "        165,000
FLEETWOOD ENTERPRISES INC             COM        339099 10 3      279       25,000SH   Defined     "         25,000
GENTEK INC                          COM NEW      37245X 20 3      413       19,850SH   Defined     "         19,850
JP MORGAN CHASE & CO                  COM        46625H 10 0      158        3,800SH   Defined     "          3,800
JOHNSON & JOHNSON                     COM        478160 10 4    3,553       60,000SH   Defined     "         60,000
M D C HLDGS INC                       COM        552676 10 8      727       11,300SH   Defined     "         11,300
MITTAL STEEL CO N V             NY REG SH CL A   60684P 10 1    1,281       33,925SH   Defined     "         33,925
NRG ENERGY INC                      COM NEW      629377 50 8    1,176       26,014SH   Defined     "         26,014
NTL INC NEW                           COM        62941W 10 1   24,166      830,162SH   Defined     "        830,162
NEWS CORP                            CL A        65248E 10 4    2,076      125,000SH   Defined     "        125,000
NEWS CORP                            CL B        65248E 20 3    3,249      185,000SH   Defined     "        185,000
NUVEEN FLTNG RTE INCM OPP FD        COM SHS      6706EN 10 0    1,038       78,300SH   Defined     "         78,300
PFIZER INC                            COM        717081 10 3    7,102      285,000SH   Defined     "        285,000
PIMCO HIGH INCOME FD                COM SHS      722014 10 7    2,604      172,800SH   Defined     "        172,800
PULTE HOMES INC                       COM        745867 10 1    1,153       30,000SH   Defined     "         30,000
SEACOR HOLDINGS INC                   COM        811904 10 1      838       10,585SH   Defined     "         10,585
SPRINT NEXTEL CORP                  COM FON      852061 10 0    6,155      238,200SH   Defined     "        238,200
SUNTERRA CORP                       COM NEW      86787D 20 8    2,142      150,000SH   Defined     "        150,000
TOLL BROTHERS INC                     COM        889478 10 3    1,108       32,000SH   Defined     "         32,000
TORTOISE ENERGY CAP CORP              COM        89147U 10 0    2,739      120,500SH   Defined     "        120,500
TYCO INTL LTD NEW                     COM        902124 10 6    8,400      312,500SH   Defined     "        312,500
UAL CORP                            COM NEW      902549 80 7    1,078       27,004SH   Defined     "         27,004
US BANCORP DEL                      COM NEW      902973 30 4    1,312       43,000SH   Defined     "         43,000
VIACOM INC NEW                       CL B        92553P 20 1    3,705       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      377       14,224SH   Defined   1,2,3       14,224
AT&T INC			      COM        00206R 10 2      541       20,000SH   Defined     1         20,000
ALLIANCE RES PARTNER L P          UT LTD PART    01877R 10 8      722       20,000SH    Other                                20,000
ALPHA NATURAL RESOURCES INC           COM        02076X 10 2      926       40,000SH   Defined     1         40,000
ALPHA NATURAL RESOURCES INC           COM        02076X 10 2    3,656      158,000SH    Other                               158,000
ARCHER DANIELS MIDLAND CO             COM        039483 10 2    1,447       43,000SH    Other                                43,000
BOSTON SCIENTIFIC CORP                COM        101137 10 7    3,757      163,000SH    Other                               163,000
BRISTOL MYERS SQUIBB CO               COM        110122 10 8      246       10,000SH   Defined     1         10,000
BRISTOL MYERS SQUIBB CO               COM        110122 10 8      246       10,000SH    Other                                10,000
CBS CORP NEW                         CL B        124857 20 2    1,369       57,100SH    Other                                57,100
CV THERAPEUTICS INC                   COM        126667 10 4      287       13,000SH    Other                                13,000
CABLEVISION SYS CORP             CL A NY CABLVS  12686C 10 9    3,471      130,000SH    Other                               130,000
CITIGROUP INC                         COM        172967 10 1    3,542       75,000SH    Other                                75,000
COMCAST CORP NEW                   CL A SPL      20030N 20 0    1,437       55,000SH    Other                                55,000
DISNEY WALT CO                    COM DISNEY     254687 10 6    5,160      185,000SH    Other                               185,000
ENERGY EAST CORP                      COM        29266M 10 9      486       20,000SH   Defined     1         20,000
FEDERAL NATL MTG ASSN	              COM        313586 10 9    1,902       37,000SH    Other                                37,000
FIFTH THIRD BANCORP                   COM        316773 10 0      905       23,000SH    Other                                23,000
JOHN HANCOCK BK &THRIFT OPP       SH BEN INT     409735 10 7      644       67,200SH    Other                                67,200
HOST MARRIOTT CORP NEW                COM        44107P 10 4      216       10,110SH    Other                                10,110
JP MORGAN CHASE & CO                  COM        46625H 10 0      541       13,000SH    Other                                13,000
JOHNSON & JOHNSON                     COM        478160 10 4    1,184       20,000SH    Other                                20,000
LAIDLAW INTL INC                      COM        50730R 10 2    1,864       68,543SH   Defined   1,2,3       68,543
M D C HLDGS INC                       COM        552676 10 8      482        7,500SH    Other                                 7,500
MERCK & CO INC	                      COM        589331 10 7      352       10,000SH   Defined     1         10,000
MITTAL STEEL CO N V             NY REG SH CL A   60684P 10 1      264        7,000SH    Other                                 7,000
NRG ENERGY INC                      COM NEW      629377 50 8      787       17,397SH   Defined   1,2,3       17,397
NTL INC NEW                           COM        62941W 10 1    5,430      186,545SH    Other                               186,545
NATIONAL CITY CORP                    COM        635405 10 3    2,665       76,359SH   Defined     1         76,359
NATIONAL CITY CORP                    COM        635405 10 3      450       12,903SH    Other                                12,903
NEWS CORP                            CL A        65248E 10 4      664       40,000SH    Other                                40,000
NEWS CORP                            CL B        65248E 20 3      351       20,000SH    Other                                20,000
PEPCO HOLDINGS INC                    COM        713291 10 2      228       10,000SH   Defined     1         10,000
PFIZER INC                            COM        717081 10 3    1,371       55,000SH   Defined     "         55,000
PFIZER INC                            COM        717081 10 3    3,613      145,000SH    Other                               145,000
PULTE HOMES INC                       COM        745867 10 1      768       20,000SH    Other                                20,000
SEACOR HOLDINGS INC                   COM        811904 10 1      443        5,591SH   Defined     1          5,591
SEACOR HOLDINGS INC                   COM        811904 10 1      418        5,280SH    Sole                  5,280
SPRINT NEXTEL CORP                    COM        852061 10 0      388       15,000SH   Defined     1         15,000
SPRINT NEXTEL CORP                    COM        852061 10 0    1,308       50,600SH    Other                                50,600
TOLL BROTHERS INC                     COM        889478 10 3      554       16,000SH    Other                                16,000
TYCO INTL LTD NEW                     COM        902124 10 6    3,494      130,000SH    Other                               130,000
UAL CORP                            COM NEW      902549 80 7      340        8,501SH   Defined   1,2,3        8,501
UAL CORP                            COM NEW      902549 80 7      226        5,668SH    Other                                 5,668
US BANCORP DEL                      COM NEW      902973 30 4      960       31,462SH    Other                                31,462
VIACOM INC NEW                       CL B        92553P 20 1    2,215       57,100SH    Other                                57,100

                                                             ----------
                                 REPORT TOTAL                $1,403,010
                                                             ==========