| Abbreviation | Definition |
|---|---|
| USAB | USA Badminton |
| USAB | USA Baseball |
| USAB | USA Basketball |
| USAB | USA Boxing |
| USABA | United States Association of Blind Athletes |
| USAC | USA Cycling |
| USACF | United States of America Chess Federation |
| USADA | United States Anti-Doping Agency |
| USAH | USA Hockey |
| USATF | USA Track and Field |
| USATH | USA Team Handball |
| USAUNHCR | United States Association for United Nations High Commissioner For Refugees |
| USAV | USA Volleyball |
| USAVDVD | USA Volleyball DISABLED VOLLEYBALL DIVISION |
| USAW | USA Weightlifting |
| USAWOA | United States Army Warrant Officers Association |
| USAWOASF | United States Army Warrant Officers Association Scholarship Foundation |
| USBA | Uniformed Services Benefit Association |
| USBE | United States Book Exchange |
| USCC | United States Cadet Corps |