UC: Undercover is an American procedural drama television series created by Shane Salerno and Don Winslow. The series premiered on the NBC network on September 30, 2001. The series ran for one season of 13 episodes, finishing its run on March 23, 2002. It focused on the secret lives and private demons of an elite Justice Department crime-fighting unit that confronted the United States' deadliest, most untouchable lawbreakers by going undercover to bust them.

The screenplays were either solely written or co-written by Salerno. James Bond composer David Arnold wrote the main title theme and scored the pilot episode. Salerno said the show was a "very music driven series." UC: Undercover was a production of NBC Studios, in association with Jersey Television, Chasing Time Pictures, Regency Television, and 20th Century Fox Television. The series' short but popular run ended when it was canceled by the network. The show developed a passionate following overseas and continues to run on FX International.