Svein Jean Magnussen (born 24 March 1942) was a Norwegian psychologist.
From 1990 he held a professorship of cognitive psychology at the University of Oslo.
[1] He was inducted into the Norwegian Academy of Science and Letters in 1998.
[3] Magnussen also led a research group in witness psychology, and issued the book Vitnepsykologi.
[3] This biographical article about a Norwegian academic is a stub.