WSA
- United Nations World Summit Awards
- Voivodeship Administrative Court
- WS-Addressing
- WSA Process
- War Shipping Administration
- Weapon storage area
- West Allerton railway station
- Western Sahara Authority
- Western Soccer Alliance
- Western Sydney Airport
- Wilderness study area
- Windows Socket API
- Windows Subsystem for Android
- Women's Squash Association
- Worker Student Alliance
- Workers' Solidarity Alliance
- World Service Authority
- World Soundtrack Awards
- World Summit Award