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, 2005 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: Kenneth S. Miller Title: Sr. Vice President Phone: (513) 870-2633 Signature, Place and Date of Signing: /s/ Kenneth S. Miller Fairfield, Ohio May 15, 2005 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: Cincinnati Insurance Company 13F File No. 28-10753 Cincinnati Casualty Company 13F File No. 28-10755 Cincinnati Indemnity Company 13F File No. 28-10756 Cincinnati Life Insurance Company 13F File No. 28-10754 CinFin Capital Management 13F File No. 28-5597 1

FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers 0 --------- Form 13F Information Table Entry Total: 31 --------- Form 13F Information Table Value Total 2,493,895 --------- List of Other Included Managers: None 2

COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 SH/PRN PUT/CALL ISSUER TITLE OF CLASS CUSIP FMV (000) SHARES ALLTEL CORP COMMON 020039103 429,014 7,821,584 SH ARCHSTONE-SMITH TRUST COMMON 039583109 2,575 75,500 SH BB & T CORP COMMON 054937107 8,793 225,000 SH CINERGY CORP COMMON 172474108 4,052 100,000 SH COCA COLA COMPANY COMMON 191216100 5,834 140,000 SH EXXON MOBIL CORPORATION COMMON 30231G102 96,198 1,614,066 SH FIFTH THIRD BANCORP COMMON 316773100 1,168,351 27,183,604 SH FIRST FINANCIAL BANCORP COMMON 320209109 44,998 2,465,644 SH FIRST MERIT CORPORATION COMMON 337915102 140,490 5,250,000 SH FORTUNE BRANDS INC COMMON 349631101 18,142 225,000 SH H J HEINZ COMPANY COMMON 423074103 5,526 150,000 SH HILLENBRAND INDUSTRIES COMMON 431573104 27,735 500,000 SH HUNTINGTON BANCSHARES INC COMMON 446150104 3,255 136,200 SH JEFFERSON PILOT CORP COMMON 475070108 3,679 75,000 SH JOHNSON & JOHNSON COMMON 478160104 33,580 500,000 SH LINCOLN NATIONAL CORP COMMON 534187109 2,257 50,000 SH MEDTRONIC INC COMMON 585055106 8,916 175,000 SH MERCK & COMPANY COMMON 589331107 647 20,000 SH MICROSOFT CORP COMMON 594918104 18,128 750,000 SH MOLEX INC CLASS A COMMON 608554200 3,629 153,750 SH NATIONAL CITY CORPORATION COMMON 635405103 30,150 900,000 SH PNC FINANCIAL SERVICES GROUP COMMON 693475105 136,473 2,651,000 SH PFIZER INC COMMON 717081103 6,568 250,000 SH PIEDMONT NATURAL GAS COMMON 720186105 58,070 2,520,400 SH PROCTER & GAMBLE CORPORATION COMMON 742718109 31,800 600,000 SH SKY FINANCIAL GROUP INC COMMON 83080P103 91,860 3,425,068 SH SYSCO CORP COMMON 871829107 16,754 468,000 SH U S BANCORP COMMON 902973304 67,272 2,334,200 SH WACHOVIA CORP. COMMON 929903102 3,039 59,700 SH WELLS FARGO & CO COMMON 949746101 13,455 225,000 SH WYETH COMMON 983024100 12,654 300,000 SH 2,493,895 61,343,716 3

COLUMN 6 COLUMN 7 COLUMN 8 INVESTMENT SHARED ISSUER DIS OTH MGRS SOLE NONE ALLTEL CORP SOLE 7,821,584 -- -- ARCHSTONE-SMITH TRUST SOLE 75,500 -- -- BB & T CORP SOLE 225,000 -- -- CINERGY CORP SOLE 100,000 -- -- COCA COLA COMPANY SOLE 140,000 -- -- EXXON MOBIL CORPORATION SOLE 1,614,066 -- -- FIFTH THIRD BANCORP SOLE 27,183,604 -- -- FIRST FINANCIAL BANCORP SOLE 2,465,644 -- -- FIRST MERIT CORPORATION SOLE 5,250,000 -- -- FORTUNE BRANDS INC SOLE 225,000 -- -- H J HEINZ COMPANY SOLE 150,000 -- -- HILLENBRAND INDUSTRIES SOLE 500,000 -- -- HUNTINGTON BANCSHARES INC SOLE 136,200 -- -- JEFFERSON PILOT CORP SOLE 75,000 -- -- JOHNSON & JOHNSON SOLE 500,000 -- -- LINCOLN NATIONAL CORP SOLE 50,000 -- -- MEDTRONIC INC SOLE 175,000 -- -- MERCK & COMPANY SOLE 20,000 -- -- MICROSOFT CORP SOLE 750,000 -- -- MOLEX INC CLASS A SOLE 153,750 -- -- NATIONAL CITY CORPORATION SOLE 900,000 -- -- PNC FINANCIAL SERVICES GROUP SOLE 2,651,000 -- -- PFIZER INC SOLE 250,000 -- -- PIEDMONT NATURAL GAS SOLE 2,520,400 -- -- PROCTER & GAMBLE CORPORATION SOLE 600,000 -- -- SKY FINANCIAL GROUP INC SOLE 3,425,068 -- -- SYSCO CORP SOLE 468,000 -- -- U S BANCORP SOLE 2,334,200 -- -- WACHOVIA CORP. SOLE 59,700 -- -- WELLS FARGO & CO SOLE 225,000 -- -- WYETH SOLE 300,000 -- -- 61,343,716 4

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