USM
- Carter USM
- Federico Santa María Technical University
- Mexico
- Rich Site Summary
- Samui Airport
- Simple Network Management Protocol
- USM Holdings
- Ultimate Soccer Manager
- Ultimate Spider-Man
- Ultrasonic machining
- Ultrasonic motor
- Union of Monaco Trade Unions
- United Socialist Movement
- United States Marines
- United States Military
- United States Mint
- United States of Mind
- Universal Storage Media
- Universal Storage Module
- Universiti Sains Malaysia
- University School of Milwaukee
- University System of Maryland
- University of Southern Maine
- University of Southern Mindanao
- University of Southern Mississippi
- Unlisted Securities Market
- Unsharp masking