Ellisiv Andrea Steen (4 February 1908 – 27 October 2001) was a Norwegian professor and literary researcher.
She was the daughter of Harald Buch (1872–1950) and Camilla Collett (1878–1973) and a sister of art historian Ada Polak.
Her master's thesis was a study of English writer and philosopher Aldous Huxley.
[1] She was a fellow of the Norwegian Academy of Science and Letters from 1955, and appointed professor at the University of Oslo in 1972.
[2][1] She was a board member of Norsk Film from 1948 to 1964, and Norwegian editor of the Swedish periodical Ord och Bild from 1950 to 1959.