WAC
- FAI World Aerobatic Championships
- Technical Guidance WM2
- WAC (gene)
- WAC Basketball Tournament (disambiguation)
- WAC Corporal
- Wack (disambiguation)
- Wak (disambiguation)
- Walker Art Center
- Walton Arts Center
- Wan Chai station
- Warrington Central railway station
- Warwick Arts Centre
- Washington (state)
- Washington Administrative Code
- Washington Athletic Club
- Washington-Alexandria Architecture Center
- Wathaurong Aboriginal Co-operative
- We Are Church
- Welsh Agricultural College
- Western Athletic Conference
- Westminster Archives Centre
- Wholesale Applications Community
- Wide Awake Club
- Wiener AC
- Wolfsberger AC
- Wollondilly Anglican College
- Women's Action Coalition
- Women's Army Corps
- Women's Auxiliary Corps (India)
- Worked All Continents
- World Affairs Council (disambiguation)
- World Agroforestry Centre
- World Amazigh Congress
- World Archaeological Congress
- World Area Codes
- World Association of Copepodologists
- World Athletics Championships
- World Avocado Congress
- World aeronautical chart
- Writing across the curriculum
- Wydad AC