Effi may refer to:
Efraim Effi Birnbaum (born 1954), Israeli basketball coach Efraim Effi Eitam (born 1952), Israeli politician and retired brigadier-general Efraim Effi Wizen (born 1956), Israeli computer animator and visual effects specialist Effi Briest, title character of the 1896 novel and various film and television adaptations
See also EFI (disambiguation) Effie (disambiguation) Effy Stonem, a character in the television series Skins