Farn may refer to:
People Farn-Sasan (died 226), last king of the Indo-Parthian Kingdom Albert Brydges Farn (1841–1921), British entomologist Farn Carpmael (1908–1988), English rower Michael Farn (born 1988), English ice hockey player
Other Farne Islands, England Fuerzas Armadas de la Resistencia Nacional, Salvadoran organisation