Keith William Hart (born August 21, 1951) is a Canadian-American retired professional wrestler and firefighter. He is a member of the Hart wrestling family and the third child of Helen and Stu Hart, CM. He is best known for his work for Stampede Wrestling and several appearances for WWE, often with his siblings Bret, Owen, Bruce and Diana. In Stampede he won several championships and for WWE he participated in the seventh edition of Survivor Series.