USPO
USPO stands for:
- United States Patent Office , Patent Office of the United States
- US Poker Open , poker tournament series
- US Post Office , branches of the United States Postal Service
- United States Probation Office , part of the US Probation and Pretrial Services System of the United States Federal Courts
- Union des Syndicats de Pharmaciens d'Officine , one of the French trade unions in the regulated medical sector
