Guttorm Fløistad (born 5 December 1930) is a Norwegian philosopher.
He was born in Arendal as a son of sawmill owner Ivar Fløistad (1900–1974) and Thordis Renskaug (1905–1954).
He is married to teacher Kirsten Kathrine Kaspersen.
He was a professor of the history of ideas at the University of Oslo from 1973 to his retirement.
This biographical article about a Norwegian academic is a stub.