UPAS
| Acronym | Definition |
|---|---|
| UPAS | Underpass (US Postal service standard street suffix) |
| UPAS | Unit Performance Assessment System |
| UPAS | Universal Pilots Application Service |
| UPAS | UAV Performance Assessment System |
| UPAS | Urokinase-Type Plasminogen Activator System (dermatology) |
| UPAS | UAS Performance Assessment System (formerly UAV, the unmanned community now recognizes the entire system) |