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): May 12, 2011

AVISTA CORPORATION

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: 509-489-0500

Web site: http://www.avistacorp.com

(Former name or former address, if changed since last report)

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:

Section 5 – Corporate Governance and Management

Item 5.07 Submission of Matters to a Vote of Security Holders.

The 2011 Annual Meeting of Shareholders of Avista Corporation (Avista Corp. or the Company) was held on May 12, 2011. Six proposals were submitted to shareholders as disclosed in Avista Corp.’s Definitive Proxy Statement filed on March 31, 2011 and were approved by shareholders at the meeting. There were 57,482,848 shares of common stock issued and outstanding as of March 11, 2011, the proxy record date, with 51,824,631 shares represented at said meeting. The proposals and the results of the voting are as follows:

Proposal 1: Election of one director, Marc F. Racicot, for a term expiring in 2014.

Mr. Racicot was elected for a term expiring in 2014 as the number of votes cast “for” exceeded the number of votes “against.” Abstentions and broker non-votes had no effect on the election. However, since the proposal (Proposal 3) that provides for the annual election of directors was approved, Mr. Racicot’s term will expire as of the date of the 2012 Annual Meeting of Shareholders. The terms of directors Erik J. Anderson, Kristianne Blake, John F. Kelly, Rebecca A. Klein, Scott L. Morris, Michael L. Noël, Heidi B. Stanley and R. John Taylor continued and will also expire as of the date of the 2012 Annual Meeting of Shareholders.

Proposal 2: Ratification of the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for 2011.

This proposal was approved as the number of votes cast “for” exceeded the number of votes “against.”

Proposal 3: Amendment of the Company’s Restated Articles of Incorporation and Bylaws to provide for the annual election of the Board of Directors.

This proposal was approved as it received the affirmative vote of the holders of 80 percent of the issued and outstanding shares of Avista Corp. common stock.

Proposal 4: Advisory (non-binding) vote on executive compensation.

This advisory (non-binding) resolution was approved as the number of votes cast “for” exceeded the number of votes “against.” Abstentions and broker non-votes had no effect on the outcome.

Proposal 5: Advisory (non-binding) vote on the frequency of an advisory vote on executive compensation.

This advisory (non-binding) resolution was approved as a frequency of every year. Abstentions and broker non-votes had no effect on the outcome.

Proposal 6: Consideration of a shareholder proposal to request the Board of Directors to take the steps necessary so that each shareholder voting requirement in the Articles of Incorporation and Bylaws that calls for a greater than a simple majority vote be changed to a majority of votes cast “for” or “against” the proposal in compliance with the applicable laws.

This proposal was approved as the number of votes cast “for” exceeded the number of votes “against.”

SIGNATURES

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.