FHN
| Acronym | Definition |
|---|---|
| FHN | Francis Howell North (Charles, MO) |
| FHN | First Horizon National Corporation (Memphis, TN) |
| FHN | Forest Hills Northern |
| FHN | Freeport Health Network (Freeport, IL) |
| FHN | Federatie Hondensport Nederland (Dutch: Dog Federation Netherlands) |
| FHN | Foreningen for Human Narkotikapolitikk (Norwegian: Human Drug Policy Association; Oslo, Norway) |
| FHN | Frequent Hemodialysis Network (study) |
| FHN | Future Healthcare Network |
| FHN | Finished Hex Nut |