UPSS
| Acronym | Definition |
|---|---|
| UPSS | Universal Parcel Shipping Software |
| UPSS | United Postal Stationery Society (est. 1945) |
| UPSS | Underground Petroleum Storage System |
| UPSS | Usual Principal and Subsidiary Status (Ministry of Labour; India) |
| UPSS | Uninterrupted Power Supply System |
| UPSS | Unisys Payment Services and Solutions (Netherlands) |