John Kenneth McKinnon (born April 20, 1936) is a Canadian politician and was Commissioner of the Yukon (1986–1995).
The son of Alex McKinnon and Catherine Luce, he was educated in Norwood, at St. Paul's College and at the University of Manitoba. McKinnon married Judy S. Chenley. He was vice-president and general manager of Northern Television Services.
McKinnon was a Member of the Yukon Territorial Council from 1961 to 1964 and from 1967 to 1974. McKinnon was then appointed Minister of Local Government in 1974, Minister of Highways and Public Works in 1976. He was then Yukon Administrator of the Northern Pipeline Agency from 1979 to 1984 and appointed Commissioner March 27, 1986 then retired in June 1995. McKinnon was chancellor of Yukon College from 2000 to 2004.
In 2007, he was named chair of the Yukon Environmental and Socio-Economic Assessment Board.