Deri may refer to:
- Aryeh Deri (born 1959), leader of Israel's Shas Party
- Miksa Déri (1854–1938), a Hungarian electrical engineer
- (Fiction), an Ergoth Emperor
- the Digital Enterprise Research Institute (DERI), an international network of semantic web research organisations.
- Deri, Caerphilly, a village in South Wales
- In India, Deri may refer to Hero-stones of Sati, indicating the location where the lady might have become Sati.