FUSA
| Acronym | Definition |
|---|---|
| FUSA | Flinders University of South Australia |
| FUSA | First USA Bank |
| FUSA | Formula USA (motorcycle racing series) |
| FUSA | Fusil de Asalto (assault rifle) |
| FUSA | First/Fifth US Army |
| FUSA | Fodbold Uden Sportslige Ambitioner (Danish: Football without Sporting Ambition; sport club) |