Lachlin (Lachlan) McCallum (March 15, 1823 – January 13, 1903) was a Canadian politician.
Background
McCallum, born in Tiree, Argyllshire, Scotland, was a contractor and shipowner before entering politics as a Liberal-Conservative. He represented the riding of Monck in the House of Commons of Canada from 1867 to 1872, when he was defeated by James David Edgar.
He served as reeve for the United Townships of Sherbrooke and Moulton in Ontario.