Ross MacKenzie Whicher (February 13, 1918 – April 19, 2002) was a Canadian politician and businessman.
Whicher served in World War II with the 4th anti-tank regiment of the Canadian military.
Following the war, he returned home and opened the Wiarton Dairy, operating it for several decades.
During this period, the Progressive Conservative government of John Robarts was often to the left of the Liberals, and Whicher often criticised it for overspending.
Following his provincial career, Whicher served two terms in the House of Commons of Canada as a Liberal Member of Parliament for Bruce.