21 Jump Street (originally titled "Jump Street Chapel") was an hour long police drama television series, developed by Fox Network. It ran from April 12, 1987 to April 27, 1991, with a total of 103 episodes.

It was produced by the studio of Stephen J. Cannell Productions (which also produced The A-Team and The Rockford Files). The show was an early hit for the fledgling Fox Network, especially in the important teen demographic. Some speculate that it was Johnny Depp's exit that caused the program's cancellation after the fourth season, though Peter DeLuise in his DVD commentary says that Barry Diller of the Fox Network saw that The Simpsons was getting a twenty share rating, which led to 21 Jump Street being dropped. The final season aired in first-run syndication on local Fox affiliates. It was later completed in rerun syndication on Fox's FX cable network from 1996 to 1998 and was produced in association with 20th Century Fox Television.