Peter Glassen (1920–1986) was a professor of philosophy at the University of Manitoba from 1949 until his death in 1986.
He was previously (1948–49) a member of the psychology department at the University of Saskatchewan.
He developed a considerable reputation as an analytic moral philosopher on the basis of a number of articles published in the late 1950s and early 1960s.
He was also known for his arguments against metaphysical materialism.