Cincinnati, February 1, 2010 — Cincinnati Financial Corporation (Nasdaq: CINF) today announced that at its regular meeting on January 29, 2010, the board of directors declared a 39.5 cents per share regular quarterly cash dividend payable April 15, 2010, to shareholders of record as of March 24, 2010. Following the increase in the regular dividend rate with the August 14, 2009, dividend declaration, the indicated annual dividend is $1.58 per share. Cash dividends declared during 2009 totaling $1.57 per share marked the 49^th consecutive year of increasing the company’s annual cash dividend.

Kenneth W. Stecher, president and chief executive officer, commented, “The board considers company performance prospects and current financial strength as part of its quarterly evaluation of opportunities to return capital to shareholders. Declaring the regular dividend demonstrates their confidence in the company’s strategy and its execution by management and our associates, who continue to work closely with the independent agents that represent The Cincinnati Insurance Companies. Collectively, we are focused on increasing shareholder value over the long term by investing now to profitably grow our insurance business, while also rewarding shareholders in the near term through cash dividends.”

Cincinnati Financial plans to report fourth-quarter and year-end 2009 results on Thursday, February 4. A conference call to discuss the results will be held at 11:00 a.m. EST on that day. Details regarding the Internet broadcast of the conference call are available on www.cinfin.com/investors.