Jan Wilhelm Malmsjö (born 29 May 1932) is a Swedish stage and film actor, musical star and singer.

In the same year he played Ilya W. Vorchek in the episode "Agent of the East" of the World War II espionage series Blue Light.

One of his more recent stage parts was as The Captain in Strindberg's The Dance of Death in the 1993 Royal Dramatic Theatre production, directed by Lars Norén (adapted for TV in 1996).

[3] Malmsjö was still acting as recently as 2017 at the age of 85, when he was rehearsing the title role of Krapp's Last Tape by Samuel Beckett, at Stockholm's Royal Dramatic Theatre.

His son, Jonas Malmsjö, is also an actor (and acted opposite his father in Ingmar Bergman's staging of The Ghost Sonata by August Strindberg, in 2000).