Alexander Wilson Smith (November 12, 1856 – October 10, 1913) was a farmer and political figure in Ontario, Canada.
He represented Middlesex North in the House of Commons of Canada from 1908 to 1911 as a Liberal.He was born in York County, Canada West, the son of James Sinclair Smith, a native of Scotland, and Agnes Wilson, and was educated at the Rockwood Academy and the Canadian Literary Institute in Woodstock, Ontario.
Smith was a farmer and livestock breeder at Maple Lodge, Middlesex County.
Smith was defeated when he ran for reelection in 1911.