| Acronym | Definition |
|---|
| WPA | Works Progress Administration (later Works Projects Administration) |
| WPA | Work Projects Administration (originally Works Progress Administration) |
| WPA | Wireless Protected Access |
| WPA | World Psychiatric Association (Association Mondiale de Psychiatrie) |
| WPA | Windows Product Activation (Microsoft) |
| WPA | Washington Project for the Arts (Washington, DC, USA) |
| WPA | World Pool-Billiard Association |
| WPA | Western Psychological Association |
| WPA | Women's Prison Association |
| WPA | Working People's Alliance (Guyana) |
| WPA | Writing Program Administrator |
| WPA | Western Provident Association (UK health insurer) |
| WPA | Whistleblower Protection Act of 1989 |
| WPA | With Particular Average |
| WPA | Win Probability Added (technical baseball statistic) |
| WPA | Weddings Parties Anything |
| WPA | Washington Pilots Association (Washington state) |
| WPA | Waste Prevention Association |
| WPA | Winnipeg Partnership Agreement (Winnipeg, MB, Canada) |
| WPA | Wagner-Peyser Act |
| WPA | Wyoming Pipeline Authority |
| WPA | World Prout Assembly |
| WPA | Wi-Fi Protected Area |
| WPA | Women Pay All (Olathe Northwest High School dance) |
| WPA | Wizards Per Acre (Utopia game) |
| WPA | Western Planning Area |
| WPA | water jet propulsion assembly (US DoD) |
| WPA | Welsh Principal Area |
| WPA | White Paper Account (UK) |
| WPA | Warm Pool Atmosphere |
| WPA | War Plans Advisor (AFLC) |
| WPA | William Preston & Associates |
| WPA | Work Package Authorization |
| WPA | Whole Product Approach |
| WPA | Wiener process acceleration |
| WPA | World Partners Association (consortium of telecommunications providers) |
| WPA | wafer phased array (semiconductor manufacturing) |
| WPA | War Powers Act of 1973 |
| WPA | Work Program Agreement (various organizations) |
| WPA | Wi-Fi Protected Access (802.11) |