"Break It Off" is a pop song written by Barbadian R&B singer Rihanna and reggae artist Sean Paul. The song is the fourth and final single from Rihanna's second album A Girl like Me and was released only in the United States, Canada, and select European territories. The song was performed during the Rockin' New Years Eve '07 television special on January 1, 2007 at Times Square in New York City. Rihanna has previously stated that she is very proud of the song.

The song uses the dancehall riddim "High Altitude".