Duncan Graham (October 5, 1845 – February 7, 1934) was a Canadian politician and farmer.

He was born in the township of Mara, Ontario County, Canada West, the grandson of early settlers from Scotland.

[1] Graham first ran a seat in the House of Commons of Canada in the 1896 federal election as a candidate for the Patrons of Industry, a left-wing farmers' party, in the riding of Ontario North.

He was defeated by a single vote by Conservative John Alexander McGillivray but the election was overturned and Graham won the February 4, 1897 by-election held in the riding and sat in parliament as an Independent Liberal.

This article about an Ontario Member of Parliament is a stub.