John Duncan McNie (July 28, 1920 – September 2, 2006) was a politician in Ontario, Canada.

He was a Progressive Conservative who served in the Legislative Assembly of Ontario from 1971 until 1975 representing the riding of Hamilton West.

He emigrated to Canada, settled in Hamilton, Ontario and married Mary Kathleen Skeans (1929–1980).

[3] McNie had asked Davis to reduce his workload for health reasons.

[5] After leaving politics, he has served as a Co-Chair of the "Committee for Hamilton Place", as a Director at The Hamilton Council for a United Canada[citation needed] and as a Director of a private company, Maplex Management & Holdings Limited.