Lloyd Cleworth Stinson (February 29, 1904 – August 28, 1976) was a politician in Manitoba, Canada, and the leader of that province's Co-operative Commonwealth Federation (CCF) from 1953 to 1959. Although widely regarded as a capable leader, he was unable to achieve a major electoral breakthrough for his party. Stinson was born in Treherne, Manitoba, and received education there and in Winnipeg. He graduated from in 1933, and was ordained as a United Church minister. He received his B.D. in 1935, and took post-graduate courses in history and political science in 1940 and 1941.