UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 18, 2015

(Exact Name of Registrant as Specified in Charter)

001-11302

(Commission File Number)

127 Public Square

Cleveland, Ohio 44114-1306

(Address of principal executive offices and zip code)

(216) 689-3000

(Registrant’s telephone number, including area code)

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:

Item 7.01 Regulation FD Disclosure

KeyCorp will review its performance, strategy and outlook, including the performance, strategy and outlook of Key Corporate Bank, at the Barclays 2015 Global Financial Services Conference on September 18, 2015. A copy of the slides forming the basis of the presentation is attached hereto as Exhibit 99.1 and will be posted on KeyCorp’s website in connection with the conference. These slides are also expected to be provided or referred to at related investor events on September 18, 2015.

The information in this Item 7.01 and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities under that Section, nor shall it be deemed incorporated by reference into the filings of KeyCorp under the Securities Act of 1933, as amended.

Item 9.01 Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.