Duncan John McCuaig (May 22, 1882 – July 20, 1960) was a Canadian farmer and political figure in Saskatchewan, Canada.

He represented Maple Creek in the House of Commons of Canada from 1945 to 1949 as a CCF member.

[1] McCuaig worked 13 years in the Cobalt silver mine before moving west around 1912, settling in the Eastend, Saskatchewan area.

[1] McCuaig was married twice: to Audra "Molly" Anderson in 1905 and to Ethel Glassford in 1940 after his first wife's death.

This article about a Saskatchewan politician is a stub.