Dimension 5 is a 1966 science fiction/espionage film written by Arthur C. Pierce and directed by Franklin Adreon. Jeffrey Hunter and France Nuyen star as time-traveling secret agents. It is part of a series of nine low-budget films produced by United Pictures Corporation.

Jeffrey Hunter was an American film and television actor and producer known for his roles in films such as The Searchers and King of Kings. On television, Hunter is known for his 1965 role as Captain Christopher Pike in the original pilot episode of Star Trek.