John Warren Hull (January 17 1903 – September 14 1974) was an actor and TV personality, active from the 1930s through the 1960s. He was one of the most popular serial actors in the action-adventure field.

A native of Gasport, New York, Hull attended New York University. Later, he left college to study voice and pursue a career in operas and operettas. He also worked frequently as a radio announcer.

The handsome Hull made his screen debut in 1934 for Educational Pictures, a short-subject studio. He co-starred opposite singer Sylvia Froos in the "Young Romance" series of musical comedies filmed in New York; Hull often joined Froos in song. In 1935 Hull was signed to a contract by Warner Bros., and spent the next few years playing leading men both in dramas and musicals. His best appearance of this period came in The Walking Dead 1936), a horror movie starring Boris Karloff and directed by Michael Curtiz. Some of Hull's early appearances have him billed as "J. Warren Hull."