Per Claes Sven Edvard Engdahl (25 February 1909 – 4 May 1994) was a leading Swedish far-right politician. He was the leader of Sveriges Fascistiska Kamporganisation, SFKO (Sweden's Fascist Struggle Organization) during the 1920s.Born in Jönköping, he came from a conservative family with a strong military tradition. He attended Uppsala University where he studied philosophy.