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

                                    FORM 13F

                               FORM 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: March 31, 2011

Check here if Amendment [  ]; Amendment Number:
   This Amendment (Check only one.): [  ]  is a restatement
                                     [  ]  adds new holdings entries.

Institutional Investment Manager Filing this Report:
Name:             Cincinnati Financial Corporation
Address:          6200 South Gilmore Road
                  Fairfield, Ohio 45014

13F File Number:  028-10798

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.

Person Signing the Report on Behalf of Reporting Manager:

Name:    Martin F. Hollenbeck
Title:   Chief Investment Officer
Phone:   (513) 870-2000

Signature, Place and Date of Signing:

    /s/ Martin F. Hollenbeck            Fairfield, Ohio          May 5, 2011
----------------------------------  -----------------------  -------------------

Report Type (Check only one.):

[ ] 13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager
are reported in this report.)

[ ] 13F NOTICE. (Check here if no holdings reported are in this report, and all
holdings are reported by other reporting manager(s).)

[X] 13F COMBINATION REPORT. (Check here if a portion of the holdings for this
reporting manager are reported in this report and a portion are reported by
other reporting manager(s).)

List of other Managers Reporting for this Manager:

No.       File No.      Name
01        28-10753      The Cincinnati Insurance Company
02        28-10754      The Cincinnati Life Insurance Company
03        28-10755      The Cincinnati Casualty Company
04        28-10756      The Cincinnati Indemnity Company
05        28-12741      The Cincinnati Specialty Underwriters Insurance Company


                                                                               1

FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers 0 ----------- Form 13F Information Table Entry Total: 59 ----------- Form 13F Information Table Value Total 798,691 ----------- (thousands) List of Other Included Managers: None 2

Column 2 Column 3 Column 4 Column 5 Issuer Title of Class Cusip FMV (000) Shares/Principal SH/PRN 3M CO COMMON 88579Y101 17,672 189,000 SH ABBOTT LABORATORIES COMMON 002824100 10,683 217,800 SH AGL RESOURCES INC COMMON 001204106 25,338 635,997 SH AMERIGAS PARTNERS-LP COMMON 030975106 380 7,900 SH AT&T INC COMMON 00206R102 16,591 542,000 SH AUTOMATIC DATA PROCESSING COMMON 053015103 5,131 100,000 SH BAXTER INTERNATIONAL INC COMMON 071813109 12,636 235,000 SH BLACKROCK INC COMMON 09247X101 7,035 35,000 SH BOARDWALK PIPELINE PARTNERS COMMON 096627104 516 15,800 SH BUCKEYE PARTNERS LP COMMON 118230101 769 12,100 SH CHEVRON CORP COMMON 166764100 35,687 332,000 SH CISCO SYSTEMS INC COMMON 17275R102 8,146 475,000 SH CONOCOPHILLIPS COMMON 20825C104 7,986 100,000 SH COPANO ENERGY LLC-UNITS COMMON 217202100 545 15,300 SH DOVER CORP COMMON 260003108 48,043 730,800 SH DUKE ENERGY CORP COMMON 26441C105 22,796 1,256,000 SH EMERSON ELECTRIC CO COMMON 291011104 15,884 271,845 SH ENBRIDGE ENERGY PARTNERS LP COMMON 29250R106 1,163 18,000 SH ENDOCYTE INC COMMON 29269A102 12,783 1,491,610 SH ENERGY TRANSFER EQUITY LP COMMON 29273V100 1,256 27,900 SH ENERGY TRANSFER PARTNERS LP COMMON 29273R109 1,584 30,600 SH ENTERPRISE PRODUCTS PARTNERS COMMON 293792107 4,984 115,750 SH GENUINE PARTS CO COMMON 372460105 44,146 823,000 SH HONEYWELL INTERNATIONAL INC COMMON 438516106 56,575 947,500 SH INERGY LP COMMON 456615103 597 14,900 SH INTEL CORP COMMON 458140100 11,214 555,700 SH INTL BUSINESS MACHINES CORP COMMON 459200101 27,722 170,000 SH JOHNSON & JOHNSON COMMON 478160104 17,775 300,000 SH KINDER MORGAN ENERGY PRTNRS COMMON 494550106 3,423 46,200 SH LINEAR TECHNOLOGY CORP COMMON 535678106 26,709 794,200 SH LINN ENERGY LLC-UNITS COMMON 536020100 1,226 31,500 SH MAGELLAN MIDSTREAM PARTNERS COMMON 559080106 1,550 25,900 SH MARKWEST ENERGY PARTNERS LP COMMON 570759100 698 14,400 SH MCDONALD'S CORP COMMON 580135101 34,061 447,638 SH MEDTRONIC INC COMMON 585055106 27,142 689,750 SH MEDTRONIC INC CONVERTIBLE DEB 585055AM8 2,421 2,350,000 PRN MEDTRONIC INC CONVERTIBLE DEB 585055AK2 1,957 1,900,000 PRN MERIDIAN BIOSCIENCE INC COMMON 589584101 18,712 780,000 SH MICROCHIP TECHNOLOGY INC COMMON 595017104 23,186 610,000 SH MICROSOFT CORP COMMON 594918104 22,470 885,000 SH NUSTAR ENERGY LP COMMON 67058H102 808 11,900 SH ONEOK PARTNERS LP COMMON 68268N103 1,186 14,400 SH PAYCHEX INC COMMON 704326107 25,108 800,000 SH PEPSICO INC COMMON 713448108 48,919 759,500 SH PFIZER INC COMMON 717081103 8,002 394,000 SH PLAINS ALL AMER PIPELINE LP COMMON 726503105 1,733 27,200 SH PRAXAIR INC COMMON 74005P104 11,481 113,000 SH PROCTER & GAMBLE CO/THE COMMON 742718109 3,074 49,900 SH REGENCY ENERGY PARTNERS LP COMMON 75885Y107 448 16,400 SH RPM INTERNATIONAL INC COMMON 749685103 19,571 824,725 SH SPECTRA ENERGY CORP COMMON 847560109 5,325 195,900 SH SUBURBAN PROPANE PARTNERS LP COMMON 864482104 468 8,300 SH SUNOCO LOGISTICS PARTNERS LP COMMON 86764L108 443 5,100 SH SYSCO CORP COMMON 871829107 27,108 978,613 SH TC PIPELINES LP COMMON 87233Q108 369 7,100 SH U S BANCORP COMMON 902973304 2,643 100,000 SH VERIZON COMMUNICATIONS INC COMMON 92343V104 26,311 682,700 SH WAL-MART STORES INC COMMON 931142103 35,991 691,464 SH WILLIAMS PARTNERS LP COMMON 96950F104 513 9,900 SH 798,691 3

Column 6 Column 7 Column 8 Issuer Investment Dis Oth Mgrs Sole Shared None 3M CO SOLE 189,000 - - ABBOTT LABORATORIES SOLE 217,800 - - AGL RESOURCES INC SOLE 635,997 - - AMERIGAS PARTNERS-LP SOLE 7,900 - - AT&T INC SOLE 542,000 - - AUTOMATIC DATA PROCESSING SOLE 100,000 - - BAXTER INTERNATIONAL INC SOLE 235,000 - - BLACKROCK INC SOLE 35,000 - - BOARDWALK PIPELINE PARTNERS SOLE 15,800 - - BUCKEYE PARTNERS LP SOLE 12,100 - - CHEVRON CORP SOLE 332,000 - - CISCO SYSTEMS INC SOLE 475,000 - - CONOCOPHILLIPS SOLE 100,000 - - COPANO ENERGY LLC-UNITS SOLE 15,300 - - DOVER CORP SOLE 730,800 - - DUKE ENERGY CORP SOLE 1,256,000 - - EMERSON ELECTRIC CO SOLE 271,845 - - ENBRIDGE ENERGY PARTNERS LP SOLE 18,000 - - ENDOCYTE INC SOLE 1,491,610 - - ENERGY TRANSFER EQUITY LP SOLE 27,900 - - ENERGY TRANSFER PARTNERS LP SOLE 30,600 - - ENTERPRISE PRODUCTS PARTNERS SOLE 115,750 - - GENUINE PARTS CO SOLE 823,000 - - HONEYWELL INTERNATIONAL INC SOLE 947,500 - - INERGY LP SOLE 14,900 - - INTEL CORP SOLE 555,700 - - INTL BUSINESS MACHINES CORP SOLE 170,000 - - JOHNSON & JOHNSON SOLE 300,000 - - KINDER MORGAN ENERGY PRTNRS SOLE 46,200 - - LINEAR TECHNOLOGY CORP SOLE 794,200 - - LINN ENERGY LLC-UNITS SOLE 31,500 - - MAGELLAN MIDSTREAM PARTNERS SOLE 25,900 - - MARKWEST ENERGY PARTNERS LP SOLE 14,400 - - MCDONALD'S CORP SOLE 447,638 - - MEDTRONIC INC SOLE 689,750 - - MEDTRONIC INC SOLE - - - MEDTRONIC INC SOLE - - - MERIDIAN BIOSCIENCE INC SOLE 780,000 - - MICROCHIP TECHNOLOGY INC SOLE 610,000 - - MICROSOFT CORP SOLE 885,000 - - NUSTAR ENERGY LP SOLE 11,900 - - ONEOK PARTNERS LP SOLE 14,400 - - PAYCHEX INC SOLE 800,000 - - PEPSICO INC SOLE 759,500 - - PFIZER INC SOLE 394,000 - - PLAINS ALL AMER PIPELINE LP SOLE 27,200 - - PRAXAIR INC SOLE 113,000 - - PROCTER & GAMBLE CO/THE SOLE 49,900 - - REGENCY ENERGY PARTNERS LP SOLE 16,400 - - RPM INTERNATIONAL INC SOLE 824,725 - - SPECTRA ENERGY CORP SOLE 195,900 - - SUBURBAN PROPANE PARTNERS LP SOLE 8,300 - - SUNOCO LOGISTICS PARTNERS LP SOLE 5,100 - - SYSCO CORP SOLE 978,613 - - TC PIPELINES LP SOLE 7,100 - - U S BANCORP SOLE 100,000 - - VERIZON COMMUNICATIONS INC SOLE 682,700 - - WAL-MART STORES INC SOLE 691,464 - - WILLIAMS PARTNERS LP SOLE 9,900 - - 4

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