WPA

WPA may refer to:

Computing

 * Wi-Fi Protected Access, a wireless encryption standard
 * Windows Product Activation, in Microsoft software licensing
 * Wireless Public Alerting (Alert Ready), emergency alerts over LTE in Canada
 * Windows Performance Analyzer

Organizations

 * Wisconsin Philosophical Association
 * World Pool-Billiard Association
 * World Psychiatric Association

United States

 * Works Progress Administration or Work Projects Administration, a former American New Deal agency
 * Washington Project for the Arts
 * Western Psychological Association
 * Women's Prison Association

United States

 * Whistleblower Protection Act, a law protecting certain whistleblowers in the USA
 * War Powers Resolution or War Powers Act, a limitation of presidential powers
 * War Powers Act of 1941, the authorization for United States entry into World War 2

Other

 * WPA, a 2009 album by Works Progress Administration (band)
 * Win probability added, a baseball statistic
 * Water pinch analysis
 * Woomera Prohibited Area, a tract of land in South Australia covering more than 120,000 sq km of arid 'outback'
 * Waterfowl production area, land protected through easements or purchase to conserve habitat for waterfowl in the United States
 * An abbreviation for Western Pennsylvania