John Walker (January 24, 1832 – August 14, 1889) was a Scottish-born industrialist and political figure in Ontario.
He represented London in the House of Commons of Canada in 1874 as a Liberal member.
[1] Walker came to Kent County, Canada West in 1864, chosen by investors in Scotland to develop agricultural and oil interests on property formerly owned by George Brown.
Walker raised a volunteer company during the Fenian raids and later reached the rank of lieutenant-colonel in the militia.
In 1867, he settled in London, Ontario, where he established a plant for the production of sulfuric acid and an oil refinery.