| Acronym | Definition |
|---|
| WAC | Western Athletic Conference |
| WAC | Women's Army Corps |
| WAC | With Approved Credit |
| WAC | Works As Coded |
| WAC | Washington Administrative Code |
| WAC | Writing Across the Curriculum (education) |
| WAC | Washington Athletic Club |
| WAC | Wholesale Acquisition Cost (pharmaceuticals) |
| WAC | Weak Acid Cation |
| WAC | World Automation Congress |
| WAC | WIPP (Waste Isolation Pilot Plant) Acceptance Criteria |
| WAC | Weighted Average Coupon |
| WAC | Waste Acceptance Criteria |
| WAC | Weighted Average Cost |
| WAC | Watershed Agricultural Council (New York) |
| WAC | World Aeronautical Chart |
| WAC | Women's Action Coalition |
| WAC | What A Concept |
| WAC | Worked All Continents (amateur radio) |
| WAC | World Agroforestry Centre (Nairobi, Kenya) |
| WAC | Women's Auxiliary Corps |
| WAC | World Aerobatic Championship |
| WAC | Workers' Assistance Center, Inc. |
| WAC | Web As Corpus (Conference) |
| WAC | Williamsburg Aquatic Club (Virginia) |
| WAC | War Advertising Council (US during WWII) |
| WAC | World Affairs Conference |
| WAC | Women's Affairs Center (Gaza) |
| WAC | World Affairs Center (Beloit College) |
| WAC | World Area Code |
| WAC | Without Attitude Control |
| WAC | Weapon Aiming Computer |
| WAC | Women's Agenda for Change |
| WAC | Wilmington Athletic Club (Wilmington, NC) |
| WAC | Web and Computer |
| WAC | Waste Assimilative Capacity |
| WAC | Wide Angle Conventional |
| WAC | Weather Analysis Center |
| WAC | Weapon Authorization Card (NATO-KFOR, Kosovo) |
| WAC | Wagga Agricultural College (Australia) |
| WAC | Walk Around Check (aviation) |
| WAC | War Amputations of Canada (Canada) |
| WAC | Wide Area Communications |
| WAC | World Adivasi Council (India) |
| WAC | Wide Area Cluster (business continuity between different data centers) |
| WAC | Women's Advisory Counsel/Committee (prisons) |
| WAC | Westerly Ambulance Corps, Inc. (Westerly, Rhode Island) |
| WAC | Weapon Assignment Console |
| WAC | Williams Adley and Co |
| WAC | Warfare Area Commander/Coordinator |
| WAC | West Assistant Controller |
| WAC | Woodruff Arts Center (Georgia) |
| WAC | Webberville Activities Committee (Webberville, MI) |
| WAC | Worldwide Anglican Communion (religious group) |
| WAC | Without Any Control (Corporal rocket) |
| WAC | World Archaeological Congress |
| WAC | Welsh Affairs Committee (UK) |
| WAC | Warwick Arts Centre (UK) |
| WAC | Walker Art Center (Minneapolis, MN) |
| WAC | Waste Advisory Committee (various locations) |
| WAC | World AIDS Campaign |