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

                                    FORM 13F

                              FORM 13F COVER PAGE


                  Report for the Quarter Ended June 30, 2010



                          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, 2010
-------------------------------
Robert H. Ruffing
Vice President and Controller


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














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




Number of Other Included Managers:                         1
                                                      -----------

Form 13F Information Table Entry Total:                   61
                                                      -----------

Form 13F Information Table Value Total (thousands):     $305,558
                                                      -----------



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






































                                                       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
--------------------------------------------
                                                                                                 
AMERICAN COMMERCIAL LINES        COM PAR $0.01   025195 40 5     1,581      70,250SH   Defined     1         70,250
AMERICAN RAILCAR INDS INC             COM        02916P 10 3       821      68,000SH   Defined     "         68,000
ANWORTH MORTGAGE ASSET CP             COM        037347 10 1       890     125,000SH   Defined     "        125,000
BANK OF AMERICA CORPORATION           COM        060505 10 4     1,554     108,120SH   Defined     "        108,120
CALAMP CORP                           COM        128126 10 9       298     139,750SH   Defined     "        139,750
CHEVRON CORP NEW                      COM        166764 10 0     1,561      23,000SH   Defined     "         23,000
COCA COLA CO                          COM        191216 10 0     1,654      33,000SH   Defined     "         33,000
DELTA AIR LINES INC DEL             COM NEW      247361 70 2       156      13,239SH   Defined     "         13,239
DISH NETWORK CORP                    CL A        25470M 10 9       684      37,675SH   Defined     "         37,675
ECHOSTAR CORP                        CL A        278768 10 6       473      24,786SH   Defined     "         24,786
FLAGSTAR BANCORP INC                COM NEW      337930 50 7        52      16,500SH   Defined     "         16,500
FULL HOUSE RESORTSINC		      COM        359678 10 9       111      35,331SH   Defined     "         35,331
HEINZ H J CO                          COM        423074 10 3     1,696      39,250SH   Defined     "         39,250
INSTEEL INDUSTRIES INC                COM        45774W 10 8       286      24,609SH   Defined     "         24,609
INTEL CORP                            COM        458140 10 0     1,838      94,500SH   Defined     "         94,500
INTERNATIONAL BUSINESS MACHS          COM        459200 10 1     1,760      14,250SH   Defined     "         14,250
JOHNSON & JOHNSON                     COM        478160	10 4     1,536      26,000SH   Defined	   "         26,000
KELLOGG CO                            COM        487836 10 8     1,854      36,850SH   Defined     "         36,850
KIMBERLY CLARK CORP                   COM        494368 10 3     1,637      27,000SH   Defined     "         27,000
KRAFT FOODS INC                      CL A        50075N 10 4     2,023      72,250SH   Defined     "         72,250
MYR GROUP INC DEL                     COM        55405W 10 4     6,419     384,615SH   Defined     "        384,615
MCDONALDS CORP                        COM        580135 10 1     1,581      24,000SH   Defined     "         24,000
MICROSOFT CORP                        COM        594918 10 4     1,507      65,500SH   Defined     "         65,500
NATIONAL INTERSTATE CORP              COM        63654U 10 0   202,164  10,200,000SH   Defined     "     10,200,000
O CHARLEYS INC                        COM        670823 10 3       156      29,500SH   Defined     "         29,500
OMEROS CORP                           COM        682143 10 2       757     102,040SH   Defined     "        102,040
PATTERSON UTI ENERGY INC              COM        703481 10 1       515      40,000SH   Defined     "         40,000
PEPSICO INC                           COM        713448 10 8     1,618      26,550SH   Defined     "         26,550
3M CO                                 COM        88579Y 10 1     1,501      19,000SH   Defined     "         19,000
TIME WARNER INC                     COM NEW      887317 30 3       252       8,716SH   Defined     "          8,716
TORTOISE ENERGY CAP CORP              COM        89147U 10 0       591      25,800SH   Defined     "         25,800
VIRGIN MEDIA INC                      COM        92769L 10 1    12,314     737,807SH   Defined     "        737,807







HOLDINGS OF OTHER ENTITIES
EACH HAVING LESS THAN
$100 MILLION IN 13F SECURITIES
------------------------------
ACE LTD                               SHS        H0023R 10 5     3,243      63,000SH    Sole                 63,000
AMERICAN COMMERCIAL LINES        COM PAR $0.01   025195 40 5     1,919      85,250SH   Defined               85,250
AMERICAN RAILCAR INDS INC             COM        02916P 10 3       816      67,581SH   Defined               67,581
ANWORTH MORTGAGE ASSET CP             COM        037347 10 1       890     125,000SH   Defined              125,000
BANK OF AMERICA CORPORATION           COM        060505 10 4     4,648     323,480SH   Defined              323,480
BERKLEY W R CORP                      COM        084423 10 2     3,096     117,000SH    Sole                117,000
CALAMP CORP                           COM        128126 10 9       300     140,750SH   Defined              140,750
CHUBB CORP                            COM        171232 10 1     3,551      71,000SH    Sole                 71,000
DELTA AIR LINES INC DEL             COM NEW      247361 70 2       178      15,097SH   Defined               15,097
DEX ONE CORP                          COM        25212W 10 0       205      10,772SH   Defined               10,772
DISH NETWORK CORP                    CL A        25470M 10 9     1,026      56,512SH   Defined               56,512
EATON VANCE TAX MNG GBL DV E          COM        27829F 10 8       382      40,000SH   Defined     1         40,000
ECHOSTAR CORP                        CL A        278768 10 6       709      37,179SH   Defined               37,179
FLAGSTAR BANCORP INC                COM NEW      337930 50 7        52      16,500SH   Defined               16,500
FULL HOUSE RESORTS INC		      COM        359678 10 9       100      31,617SH   Defined               31,617
INSTEEL INDUSTRIES INC                COM        45774W 10 8       258      22,216SH   Defined               22,216
ISHARES TR INDEX                  MSCI EAFE IDX  464287 46 5     2,000      43,000SH   Defined     1         43,000
KEYCORP NEW                           COM        493267 10 8       402      52,222SH   Defined     "         52,222
MANAGED HIGH YIELD PLUS FD I          COM        561911 10 8        21      10,000SH   Defined     "         10,000
O CHARLEYS INC                        COM        670823 10 3       236      44,654SH   Defined               44,654
OMEROS CORP                           COM        682143 10 2     1,136     153,061SH   Defined              153,061
PATTERSON UTI ENERGY INC              COM        703481 10 1       515      40,000SH   Defined               40,000
POWERSHARES ETF TRUST            DYNAMIC MKT PT  73935X 10 4       854      24,400SH   Defined     1         24,400
POWERSHARES ETF TRUST            HI YLD EQ DVDN  73935X 30 2       163      21,300SH   Defined     "         21,300
SPDR S&P 500 ETF TR              UNIT SER 1 S&P  78462F 10 3     4,542      44,000SH   Defined     "         44,000
SELECT SECTOR SPDR TR            SBI CONS STPLS  81369Y 30 8       894      35,060SH   Defined     "         35,060
SELECT SECTOR SPDR TR            SBI INT-UTILS   81369Y 88 6       212       7,500SH   Defined     "          7,500
TORTOISE ENERGY CAP CORP              COM        89147U 10 0     1,968      85,900SH   Defined               85,900
VIRGIN MEDIA INC                      COM        92769L 10 1    19,402   1,162,588SH   Defined            1,162,588


                                                             ----------
                                 REPORT TOTAL                 $305,558
                                                             ==========