| Acronym | Definition |
|---|
| FUS | Focused Ultrasound Surgery |
| FUS | Franciscan University of Steubenville |
| FUS | Fast User Switching |
| FUS | First Unitarian Society (various locations) |
| FUS | Fath Union Sport de Rabat (Moroccan sports club) |
| FUS | Former United States (gaming) |
| FUS | Fuselage |
| FUS | Fusilier (Canadian and British Military) |
| FUS | Feline Urologic Syndrome |
| FUS | Follow-Up Services |
| FUS | Fondo Unico Social (Italian: Special Social Fund; Venezuela) |
| FUS | Fans United for Satam (Sonic the Hedgehog TV show) |
| FUS | Facility Utilization Survey |
| FUS | Finished Upper Story (building code) |
| FUS | Fever of Unknown Source |
| FUS | forward up starboard (maritime term) |
| FUS | Fail-Unsafe State |
| FUS | Female Under Surveillance |