Robert Johnston (November 21, 1856 – September 25, 1913) was a farmer and political figure in Ontario, Canada. He represented Cardwell in the House of Commons of Canada from 1900 to 1904 as a Conservative.[1]
He was born in Caledon Township, Canada West, the son of Robert Johnston and Margaret J. McFarland, and was educated in Peel County. Johnston served as warden for Peel County.[2] He was a farmer in Caledon Township. He died in Brampton at the age of 56.[3]