| Abbreviation | Definition |
|---|---|
| USSID | United States Signals Intelligence Directorate |
| USSID | United States Special Intelligence Directive |
| USSIS | United States Signal Intelligence System |
| USSOCCENT | U.S. Special Operations Command Central |
| USSOCOM | United States Special Operations Command |
| USSOF | United States Special Operations Forces |
| USSOUTHAF | United States Air Force, SOUTHern Command |
| USSOUTHCOM | United States Southern Command |
| USSPACECOM | United States Space Command |
| USSS | United States SIGINT(SIGnals INTelligence) System |
| USSS | United States Signal Intelligence System |
| USSTRATCOM | United States Strategic Command |
| USTA | United States Total Army |
| USTRANS-COM | United States Transportation Command |
| USU | Uniformed Services University |
| USU | Universal Slamball Unlimited |
| USV | U.S. Volunteers |
| USV | United States Volunteers |
| USVA | United States Veterans Assistance Office |
| USW | UnderSea Warfare |