Zontar, the Thing from Venus (a.k.a. Zontar: The Invader from Venus) is a 1966, made for television science fiction film, directed by Larry Buchanan, and based on the teleplay by Hillman Taylor and Buchanan. It is a low-budget 16mm film color remake of Roger Corman’s It Conquered the World (1956), which also featured an alien invader from Venus.

The film is arguably Buchanan’s best known.