| USF | University of South Florida | |
| USF | University of South | |
| USF | University of South Florida's | |
| USF | Upper Secondary Frequency | |
| USF | Uplink Status Flag | |
| USF | Unterhaltungs Software Forum | |
| USF | Und So Fort | |
| USF | Urban Special Forces | |
| USF | University of Sioux Falls | |
| USF | United States Frigate | |
| USF | User Specified Folder | |
| USF | Universal Service Fee | |
| USF | University of St Francis | |
| USF | University of Saint Francis | |
| USF | Unwavering Stance of Foolishness | |
| USF&G | United States Fidelity And Guarantee | |
| USFA | United States Fire Administration | |
| USFA | United States Fencing Association | |
| USFA | United States Futsal Association | |
| USFA | United States Football Alliance | |
| USFA | United States Fastpitch Association | |
| USFA | United States Fencing Association | |
| USFA | United States Fencing Association | |
| USFA | United States Fire Administration | |
| USFA | United States Food Administration |
