• Born date: 1888-12-02
  • Born in: England
  • Death date: 1974-08-25
  • Death in: Ontario
Major James Coldwell

Major James William Coldwell, PC CC (December 2, 1888 – August 25, 1974), usually known as M.J. (Major was his first name, not a military title), was a Canadian social democratic politician, and leader of the Co-operative Commonwealth Federation (CCF) party from 1942 to 1960. He was born in England, and immigrated to Canada in 1910. Prior to his political career, he was an educator and union activist.