Robert Harris "Bob" Justman (July 13, 1926 – May 28, 2008) was an American television producer, director, and production manager.

He worked on many American TV series including Lassie, The Life of Riley, Adventures of Superman, The Outer Limits, Star Trek, Mission: Impossible, Search, and Then Came Bronson.

Justman was reportedly the first to call Gene Roddenberry "The Great Bird of the Galaxy," drawn from a throwaway line from the original series episode "The Man Trap".

Justman also appeared in front of the camera once as an actor, playing the "Elder of Luminos" in "A Feasibility Study", a 1964 episode of The Outer Limits.

According to Publishers Weekly, "As told by Solow, Star Trek's co-producer [sic], and Justman, the executive in charge of production [sic], this is arguably the definitive history of the TV show...With plenty of behind-the-scenes material that will be of interest to Trek fans, this book puts a good deal of emphasis on the show's business side, elucidating production difficulties, cost overruns, and the seemingly constant debate with NBC over the show's future."