Charles Colquhoun Ballantyne, PC (August 9, 1867 – October 19, 1950) was a Canadian politician. A millionaire and one-time owner of Sherwin Williams Paints in Montreal, Ballantyne was president of the Canadian Manufacturer's Association and a member of the Montreal Harbour Board. He also raised and commanded the 1st Battalion Grenadier Guards of Canada. He was appointed to Sir Robert Borden's World War I Union government. He held no parliamentary seat when Borden appointed him minister of public works, minister of marine and fisheries and minister of the naval service in October 1917. He became a Cabinet minister prior to being elected to the House of Commons of Canada in the December 1917 federal election; delayed for two weeks because of the Halifax Explosion. Ballantyne was one of a han