Christopher Breen (born June 29, 1989) is a Canadian professional ice hockey defenceman who is currently an unrestricted free agent. He most recently played with the Providence Bruins of the American Hockey League (AHL). An undrafted player, Breen originally joined the Calgary Flames organization in 2010 and made his NHL debut with the team in 2013. He was later signed by the Boston Bruins as a free agent on July 1, 2014.