| Acronym | Definition |
|---|
| WAAC | Women's Army Auxiliary Corps (various locations) |
| WAAC | Women's Auxiliary Army Corps (USA-WWII) |
| WAAC | Western Association for Art Conservation |
| WAAC | World Algeria Action Coalition |
| WAAC | Western Australian AIDS Council |
| WAAC | Workshop on Algorithms and Computation |
| WAAC | Women’s Abortion Action Campaign |
| WAAC | West African Airways Corporation (intergovernmental airline) |
| WAAC | Women's Art Association of Canada |
| WAAC | Win At All Cost |
| WAAC | Windsor Accessibility Advisory Committee (Windsor, ON, Canada) |
| WAAC | Wheels Accessible Advisory Committee |
| WAAC | Western Association of Agriculture Councils |
| WAAC | Weighted Average Adjustment Coefficient |
| WAAC | Waukee Area Arts Council (Waukee, Iowa, USA) |
| WAAC | World Amazigh Action Coalition, Inc. (Canada) |
| WAAC | West Allis Auto Club (Wisconsin) |