John Novak (born September 9, 1955) is a Canadian actor.
He has made guest appearances on such series as The Twilight Zone, Sliders, First Wave, Crusade, Stargate SG-1, Smallville and Supernatural. He played Dr. James Salinger in the 1996 Doctor Who TV movie.
He appeared in four episodes of the revival series from 1995 to 1999:
- "I, Robot (1995)" - Adam Link (voice)
- "Birthright" - Dave Pettigrew
- "Heart's Desire" - Tom Grant
- "Descent" - Dr. Martin Stansfield
Archive footage of his appearance in "Birthright" was later used in the clip show "The Voice of Reason".