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 World Pool 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
Legislation
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 Women's Political Association of Victoria an early 20th century organisation in Australia