| Acronym | Definition |
|---|
| FIV➣Feline Immunodeficiency Virus |
| FIV➣Five |
| FIV➣Federazione Italiana Vela (Italian: Italian Sailing Federation) |
| FIV➣Fecondation in Vitro (French: In Vitro Fertilization) |
| FIV➣Facilité d'Investissement pour le Voisinage (French: Investment Facility Neighborhood; EU) |
| FIV➣Flow-Induced Vibration |
| FIV➣Fédération Internationale du Vieillissement (International Federation on Ageing) |
| FIV➣Formation Isolation Valve |
| FIV➣Fuel Isolation Valve |
| FIV➣FIV Racing Championship |