Mrs. Brown's Boys is a British-Scottish-Irish television sitcom created by and starring Brendan O'Carroll and produced in the United Kingdom by BBC and BBC Studios in partnership with BOC-PIX and Irish broadcaster RTÉ.

The series stars O'Carroll as Agnes Brown, with several close friends and family members making up the rest of the cast. The show adopts an informal production style often breaking the fourth wall, where production mistakes and tomfoolery, mostly instigated by O'Carroll, are edited into each episode. Despite being lambasted by critics and unfavourable comparisons to Father Ted, the show became a ratings success in both Ireland, where it is set, and the United Kingdom, where it is recorded. It also received high ratings in Australia, New Zealand and Canada. The show has won numerous industry awards.

Mrs. Brown's Boys was developed from O'Carroll's works going back to the early 1990s. The character, Agnes Browne, first appeared in stage plays, radio plays, books, and straight-to-DVD films. For the sitcom, the spelling of Agnes' surname was shortened from Browne to Brown. A stage show has continued to run, and during February and March 2014 it toured Australia. A feature film, Mrs. Brown's Boys D'Movie, was released on 27 June 2014. In late 2023, the show returned for a fourth series.