| Acronym | Definition |
|---|
| FLH➣Federal Lands Highway |
| FLH➣Fédération Luxembourgeoise de Handball (French: Luxembourg Handball Federation; Luxembourg) |
| FLH➣Fei Lun Hai (band) |
| FLH➣Farm Labor Housing |
| FLH➣Front de Libération Homosexuel (French: Homosexual Liberation Front; Canada) |
| FLH➣Flash Load Helper (Cisco) |
| FLH➣Front Line Heroes (online gaming league) |
| FLH➣Flammable Liquid Hydrocarbon |
| FLH➣Full Load Hour (energy) |
| FLH➣Foot Loisir Hérinois (French football club) |