| Acronym | Definition |
|---|
| WACC | Weighted Average Cost of Capital |
| WACC | World Association for Christian Communication |
| WACC | Women against Cervical Cancer |
| WACC | Work Activities Coordination and Collaboration (workshop) |
| WACC | Whittier Area Community Church (Whittier, California) |
| WACC | World Altair Computer Convention (est. 1976) |
| WACC | Weapons and Ammunition Commodity Council (US DHS) |
| WACC | Wellington Acorn Computer Club (New Zealand) |
| WACC | Water, Air and Climate Change (British Columbia, Canada) |
| WACC | Williamsport Area Community College (now the Pennsylvania College of Technology; Williamsport, PA) |
| WACC | West Auckland Community Church (UK) |
| WACC | Waste Acceptance Criteria Committee |
| WACC | World Africa Chamber of Commerce |
| WACC | Warning & Caution Computer (aviation) |