USPO
| Acronym | Definition |
|---|---|
| USPO | Us Patent Office |
| USPO | United States Post Office |
| USPO | United States Patent Office |
| USPO | United States Probation Office |
| USPO | United States Probation Officer |
| USPO | United States Politics Online |
| USPO | Unions des Syndicats de Pharmaciens d'Officine (French: Coalition of Pharmacists' Trade Union; France) |
| USPO | Urban Systems Project Office |