Leon David Crestohl (May 7, 1900 – March 21, 1963) was a Canadian lawyer and politician.Born in Warsaw, then in the Kingdom of Poland, the son of Rabbi Hyman Meyer Crestohl (1865–1928), he emigrated with his family to Canada in 1911 living in Quebec City before moving to Montreal in 1919. Crestohl was educated at McGill University and the Université de Montréal. He was called to the Quebec Bar in 1926 and was made a King's Counsel in 1944.