Rafael Font Farran ( 26 May 1912, Sitges, Barcelona Province, Spain - 19 November 2003 in Auxerre Burgundy, France) was a Spanish politician and journalist.
Font Farran was instrumental in founding the Catalan left-wing party Esquerra Republicana de Catalunya (ERC), but shifted to the Spanish left-wing POUM party on the outbreak of the Spanish Civil War.
He was imprisoned in 1937 and fled to France at the end of the war.
He became active in French as well as Spanish left-wing politics and was a member of the Fourth International.
He wrote a Marxist history of Spain, a history of Catalan nationalism, and a book of memoirs.