Bridesmaids is a 2011 American comedy film directed by Paul Feig from a screenplay by Annie Mumolo and Kristen Wiig, and produced by Judd Apatow, Barry Mendel and Clayton Townsend. It stars Wiig, Maya Rudolph, Rose Byrne, Wendi McLendon-Covey, Ellie Kemper, Melissa McCarthy, and Chris O'Dowd. The film focuses on a woman who experiences a series of misfortunes after being asked to serve as maid of honor for her best friend.

Actresses Mumolo and Wiig wrote the screenplay after the latter was cast in Apatow's comedy Knocked Up (2007), and budgeted at $32.5 million. Upon its opening release in the United States on May 13, 2011, Bridesmaids was a critical and commercial success. The film made $26 million in its opening weekend, eventually earning over $306 million worldwide, and surpassed Knocked Up to become the top-grossing Apatow production to date, and served as a touchstone for discussion about women in comedy. It has since been cited as among the best comedy films of the 21st century.

Bridesmaids was nominated for a Golden Globe Award for Best Motion Picture – Musical or Comedy. It received multiple other accolades. In 2012, the film was nominated for both the Academy Award for Best Supporting Actress for McCarthy and Best Original Screenplay for Wiig and Mumolo. This made Bridesmaids the first Apatow-produced film to be nominated for an Academy Award.