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| UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549                                                                                                       |
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| FORM 8-K                                                                                                                                                                    |
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| CURRENT REPORT                                                                                                                                                              |
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| Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934                                                                                                      |
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| Date of Report: April 25, 2018(Date of earliest event reported)                                                                                                             |
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| CINCINNATI FINANCIAL CORPORATION                                                                                                                                            |
| (Exact name of registrant as specified in its charter)                                                                                                                      |
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| Ohio                                                                                                                                                                        | 0-4604 | 31‐0746871 |
| (State or other jurisdiction  of incorporation)                                                                                                                             | (Commission File Number) | (I.R.S. Employer Identification No.) |
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| 6200 S. Gilmore Road, Fairfield, Ohio                                                                                                                                       | 45014‐5141 |
| (Address of principal executive offices)                                                                                                                                    | (Zip Code) |
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| Registrant’s telephone number, including area code:  (513) 870-2000                                                                                                   |
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| N/A(Former name or former address, if changed since last report.)                                                                                                           |
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| Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: |

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|  ̈ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) |
|  ̈ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) |
|  ̈ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) |
|  ̈ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13a-4(c)) |

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News release dated April 25, 2018, “Cincinnati Financial Reports First-Quarter 2018 Results”

Supplemental Financial Data for the period ending March 31, 2018 distributed April 25, 2018.

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|                 | CINCINNATI FINANCIAL CORPORATION |
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| Date: April 25, 2018 | /S/ Michael J. Sewell |
|                 | Michael J. Sewell, CPA |
|                 | Chief Financial Officer, Senior Vice President and Treasurer |
|                 | (Principal Accounting Officer) |