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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:  August 20, 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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|  ̈  | Emerging growth company |

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|  ̈ | If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. |

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The Cincinnati Insurance Company’s Chief Insurance Officer to Retire

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|                  | CINCINNATI FINANCIAL CORPORATION |
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| Date: August 20, 2018 | /S/ Michael J. Sewell |
|                  | Michael J. Sewell, CPA |
|                  | Chief Financial Officer, Senior Vice President and Treasurer |
|                  | (Principal Accounting Officer) |