Einar Østvedt (30 November 1903 – 11 April 1980) was a Norwegian historian and educator.
He studied in the United Kingdom in 1948, Harvard University in 1955, at Rome in 1963 and Copenhagen during 1964.
He published the book Telemark i norsk malerkunst in 1942, with illustrations by Harald Kihle.
In 1946 he published his diaries from imprisonment during the occupation of Norway by Nazi Germany.
In 1963 he published a biography of Dyre Vaa, and also the book Fløtning i Telemark gjennom 300 år.