| WUSA | TV-9, Washington, D. C. 
| Others |
| WUSA | Washington University Student Associates
| Others |
| WUSA | West University Softball Association
| Others |
| WUSA | Windows Update Standalone Agent
| Others |
| WUSA | Windows Update Standalone Installer
| Others |
| WUSA | Wisconsin Utility Suppliers Association
| Others |
| WUSA | Wollongong Undergraduate Student's Association
| Others |
| WUSA | Wollongong Undergraduate Students Association
| Others |
| WUSA | Wollongong Undergraduate Students' Association
| Others |
| WUSA | Women's United Soccer Association
| Others |
| WUSA | Woodstock United Soccer Association
| Others |