UFC 124: St-Pierre vs. Koscheck 2 was a mixed martial arts pay-per-view event held by the Ultimate Fighting Championship on December 11, 2010 at Bell Centre in Montreal, Quebec, Canada. The event was the fourth that the UFC has hosted at the Bell Centre following UFC 83, UFC 97 and UFC 113 and the fifth event held in Canada along with UFC 115 which was held in Vancouver, British Columbia.

Bell Centre formerly known as Molson Centre, is a multi-purpose arena located in Montreal, Quebec, Canada. Opened on March 16, 1996, it is the home arena of the Montreal Canadiens of the National Hockey League (NHL), replacing the Montreal Forum. It is owned by the Molson family via the team's ownership group Groupe CH, and managed via Groupe CH subsidiary Evenko.