English abbreviations from urt to usaarl
- URT (Universal Running Tool)
- URTNA (Union de Radiodiffusion et Télévision Nationale en Afrique)
- URU (Uruguay (IOC and FIFA trigram, but not ISO 3166))
- URV (Ultimate Rescue Vehicle)
- URW (Utility Right of Way)
- URY (Uruguay (ISO 3166 trigram))
- US (United States (also ISO 3166 and FIPS 10-4 country code digram))
- U/S (UltraSonic)
- USA (United States of America)
- USAA (United States Army Aviation)
- USAABNSOTB (United States Army Airborne and Special Operations Test Board)
- USAAC (United States Army Air Corps)
- USAADAC (U.S. Army Air Defense Artillery Center, Fort Bliss, Texas)
- USAADASCH (United States Army Air Defense Artillery School)
- USAADBD (United States Army Air Defense Board)
- USAADS (U.S. Army Air Defense School)
- USAAF (United States Army Air Forces)
- USAARENDB (United States Army Armor and Engineer Board)
- USAARL (United States Army Aeromedical Research Laboratory)
