Marcus Hyman, M.A., LL.B. (July 13, 1883—December 21, 1938) was a politician in Manitoba, Canada. He served in the Legislative Assembly of Manitoba from 1932 to 1938, representing the Independent Labour Party.
Hyman was born to a Jewish family near Vilna, Poland. His father, the Rabbi Aaron Hyman, was the author of several works. The younger Hyman was educated at Worcester College, Oxford, and received five scholarships during his time in England. From 1910 to 1913, he worked as the private tutor to an India prince. He came to Canada in 1913, and worked as a barrister-at-law, also lecturing at the Manitoba Law School from 1915 to 1921 in international law and legal history. In 1914, he married Erna Ziembiska.
During World War I, Hyman was president of the Western Canadian Relief Fund for the Relief of War Sufferers and, in 1917-18, chair of the Winnipeg Committee of the British and Canadian Recruiting Mission. The letter organization helped to raise men for combat in Egypt and Palestine. From 1923 to 1928, he was a member of the Winnipeg School Board.
Hyman's political career effectively began with the Winnipeg General Strike. He acted as defense council for the strikers, and defended a number of east European strikers accused of "foreign agitation". He continued his practice as a labour lawyer in the 1920s, and was a supporter of the One Big Union.
He first sought election to the Manitoba legislature in the 1927 provincial election, but finished third in Manitoba riding. He ran for Mayor of Winnipeg in 1930 and 1931, but lost on both occasions.