Donald Clarke Sweeney (born August 17, 1966) is a Canadian former ice hockey defenceman who played over 1,100 games in the National Hockey League (NHL), most with the Boston Bruins. He ranks among the top ten in many Bruins team statistics, including third overall in total games played. After retiring from hockey following the 2003–04 season, he worked briefly as a broadcaster before rejoining the Bruins as a team executive in 2006.