Community is an American television sitcom created by Dan Harmon. The series ran for 110 episodes over six seasons, with its first five seasons airing on NBC from September 17, 2009, to April 17, 2014, and its final season airing on Yahoo Screen from March 17 to June 2, 2015. Set at a community college in the fictional Colorado town of Greendale, the series stars an ensemble cast including Joel McHale, Gillian Jacobs, Danny Pudi, Yvette Nicole Brown, Alison Brie, Donald Glover, Ken Jeong, Chevy Chase, and Jim Rash. It makes use of meta-humor and pop culture references, paying homage to film and television clichés and tropes.

Harmon based Community on his experiences attending Glendale Community College. Each episode was written in accordance with Harmon's "story circle" template, a method designed to create effective and structured storytelling. Harmon was the showrunner for the first three seasons but was fired before the fourth and replaced by David Guarascio and Moses Port. After weaker reviews, Harmon was rehired for the fifth season, after which NBC canceled the series. Yahoo Screen revived the show for Community's sixth and final season.

Despite struggling in the ratings, Community developed a cult following and received acclaim for its acting, direction, writing, and meta-humor. It won a Primetime Emmy Award from four nominations and received the Critics' Choice Television Award for Best Comedy Series in 2012, among other accolades. In September 2022, after several years of speculation and development, a feature-length Community film was announced for NBCUniversal's streaming service Peacock.

Jeff Winger is disbarred and suspended from his law firm when it is discovered that he lied about having a bachelor's degree from Columbia University. To earn a legitimate degree, he enrolls at Greendale Community College in Colorado. He quickly becomes attracted to his classmate, social activist Britta Perry, and pretends to run a study group in order to spend time with her. Britta invites classmate Abed Nadir, a socially awkward and pop culture obsessed student, who in turn brings other classmates along: religious single mother Shirley Bennett; naïve over-achiever Annie Edison; former high school football star Troy Barnes; and bigoted, elderly millionaire Pierce Hawthorne. Despite their differences, the group's members soon become close friends. They are often roped into helping the college's flamboyant dean, Craig Pelton, in his schemes to make the school seem more respectable, as well as having to deal with the antics of their mentally unstable teacher (and eventual classmate and friend) Ben Chang.

Season 1 follows Jeff's creation of the study group and its subsequent misadventures. Season 2 sees Chang forced to enroll as a student and attempt to join the study group despite secretly planning revenge against it, while Pelton is forced to fight for Greendale's sense of pride against the dean of a rival school City College, eventually culminating in a desperate paintball battle. Season 3 focuses on Chang's villainous plot to take over the school, as well as Troy's struggle with whether or not to attend the cult-like air conditioning repair school. Season 4 shows the study group in its senior year, with all the characters (especially Abed) struggling with what may be their final moments together, and Chang recovering from "Changnesia" (a fake amnesia which Chang uses as a coverup). Season 5 sees Pierce's death and Troy leaving in the middle of the season, while the other characters return to Greendale after graduation to save the school, leading Jeff to take a job there as a teacher. Season 6 ends the series with the characters reflecting on the last six years while new staff member Frankie Dart arrives at the dysfunctional school to make it more respectable, forcing the group to question how much Greendale can be cleaned up while still remaining Greendale.

The show features an ensemble cast of characters, focusing on the members of a study group and a recurring group of faculty of Greendale Community College, including the school's dean.

Dan Harmon emphasized the importance of the cast to making the premise of the comedy work. "Casting was 95 percent of putting the show together," he said in an interview. He had worked with several of the cast members previously. Actor Chevy Chase had long been a favorite of Harmon. Though initially not partial to sitcoms, Chase was persuaded by the quality of the show's writing to take the job. Harmon saw similarities between Chase and the character he plays on the show. Though Chase has often been ridiculed for his career choices, Harmon believed this role could be redeeming: "What makes Chevy and Pierce heroic is this refusal to stop." Harmon had to warn Chase against playing a "wise-ass" the way he often does in his roles, since the character of Pierce is a rather pathetic figure who is normally the butt of the joke himself.

McHale, known from the E! comedy talk show The Soup, was also impressed by Harmon's writing. He commented, "Dan's script was so head and shoulders above everything else that I was reading." McHale appealed to Harmon because of his likability, which allowed the character to possess certain unsympathetic traits without turning the viewer against him. To play Annie, Harmon wanted someone resembling Tracy Flick, Reese Witherspoon's character in the 1999 movie Election. Originally the producers were looking for a Latina or Asian Tracy Flick, but they cast Alison Brie, known for her role as Trudy Campbell on Mad Men.