Think Fast is an American children's game show which aired on Nickelodeon from May 1, 1989, to March 30, 1990, with reruns airing weekly until June 29, 1991.

For the first season, the show was hosted by Michael Carrington, and announced by James Eoppolo. When the show moved to the new Nickelodeon Studios in Orlando, Florida, for season 2, Carrington was replaced by Skip Lackey. While Eoppolo was invited to stay on as announcer, he was contractually obligated to another project by that time, and was replaced by Henry J. Waleczko. The show's theme music was composed by Edd Kalehoff.

Season 1 had 65 episodes taped in Philadelphia, Pennsylvania. The Tampa Tribune initially reported that 45 episodes of season 2 were taped in Orlando, Florida. However, only 41 episodes were produced.