FHU
| Acronym | Definition |
|---|---|
| FHU | Freed-Hardeman University (Henderson, TN) |
| FHU | Fish Health Unit (various locations) |
| FHU | Foundation of Human Understanding |
| FHU | Francis Howell Union (high school; Missouri) |
| FHU | Fort Huachuca/Sierra Vista, AZ, USA (Airport Code) |
| FHU | First Human Use (medical devices) |
| FHU | Fuchs' Heterochromic Uveitis (ophthalmology) |