Big Brother Canada is a Canadian television reality game show based on the Dutch reality show of the same name, which was part of the wider Big Brother franchise. The first season of the series premiered on February 27, 2013, on Slice. From the third season, the show aired on Global until the twelfth and final season ended on May 8, 2024. The series is produced by Endemol and Insight Productions. It is hosted by Arisa Cox, who is concurrently an executive producer starting from the ninth season.

The show follows the premise originated by the American version of the show, in which a group of contestants, known as "HouseGuests", live together in a specially constructed house that is isolated from the outside world as they compete for a $100,000 cash prize, as well as additional prizes from the show's sponsors. The HouseGuests are continuously monitored during their stay in the house by live television cameras as well as personal audio microphones.

A live feed into the house was available for viewers to watch for free through the show's website, before being replaced by Digital Dailies in season 11. Big Brother Canada is the first incarnation of the series to adopt the format used in the United States, which greatly differs from others. The rules of the series have also been altered throughout each season through "twists" added to the game.

The series was put on hiatus following the conclusion of the fifth season, but fan support saw the series renewed for a sixth season. The twelfth season premiered on March 5, 2024, on Global and STACKTV. Season 12 houseguests are competing for over $200,000 in cash and prizes.

On June 27, 2024, it was officially announced that the series was cancelled after 12 seasons. 333 episodes were produced. A petition was made to show fan support in hopes that the show will be picked up by another network. The petition can be found at savebigbrothercanada.com