FV may stand for:
- Factor V, a protein of the coagulation system
- the IATA code for Rossiya (airline)
- Fantasy violence, a type of television parental rating
- "Fighting Vehicle" in the British Army, e.g. List of FV series military vehicles
- Future value
- Federal Vision
- Fragment variable of an antibody
- FarmVille, a social networking game on Facebook
- Funk Volume, a hip hop record label founded by American hip-hop artist Hopsin