USRA
| Acronym | Definition |
|---|---|
| USRA | Universities Space Research Association |
| USRA | United States Railroad Administration |
| USRA | Undergraduate Student Research Awards (Canada) |
| USRA | United States Railway Association |
| USRA | United States Racquetball Association |
| USRA | United States Racing Association |
| USRA | United Slot Racers Association |
| USRA | United States Revolver Association |
| USRA | United Stockcar Racers Association |