Brooklyn Nine-Nine is an American police procedural sitcom television series that aired on Fox, and later on NBC, from September 17, 2013, to September 16, 2021, for eight seasons and 153 episodes. Created by Dan Goor and Michael Schur, it revolves around seven New York City Police Department (NYPD) detectives who are adjusting to life under their new commanding officer, the serious and stern Captain Raymond Holt (Andre Braugher). Andy Samberg led the ensemble cast, which featured Braugher, Stephanie Beatriz, Terry Crews, Melissa Fumero, Joe Lo Truglio, Chelsea Peretti, Dirk Blocker, and Joel McKinnon Miller.

Fox originally ordered 13 episodes of the single-camera comedy for its first season, eventually expanding it to 22 episodes. Brooklyn Nine-Nine premiered on September 17, 2013. On May 10, 2018, Fox cancelled it after five seasons; the next day, NBC picked it up for a sixth season, which premiered on January 10, 2019. The seventh season premiered in February 2020. The 10-episode eighth and final season premiered on August 12, 2021.

The series has been acclaimed by critics. The first season won the Golden Globe Award for Best Television Series – Musical or Comedy, and on the same night, Samberg won the Golden Globe Award for Best Actor – Television Series Musical or Comedy. Braugher was nominated four times for the Primetime Emmy Award for Outstanding Supporting Actor in a Comedy Series and twice won the Critics' Choice Television Award for Best Supporting Actor in a Comedy Series. For its portrayal of LGBTQ+ characters, it won the 2018 GLAAD Media Award for Outstanding Comedy Series.