David Spence (January 25, 1867 – February 13, 1940) was an Irish-born Canadian politician, businessman and army officer.

Spence was born in Markethill, County Armagh, Ireland and was educated at a state school before immigrating to North America in 1896.

He served as an alderman on Toronto City Council from 1910 to 1916 and was instrumental in winning approval for the construction of the Prince Edward Viaduct.

[2] During World War I he helped form The Irish Regiment of Canada and was one of its officers but was not permitted to go overseas to fight because of his age.

[3] Mowat was appointed to the bench prior to the 1921 federal election freeing up the riding for Spence to contest.