Donald MacInnes, born Donald McInnes, (26 May 1824 – 1 December 1900) was a Canadian businessman and politician. Born in Oban, Scotland, the son of Duncan McInnes and Johanna Stuart, McInnes’s family emigrated to Upper Canada in 1840 and settled in Ontario. He was married on April 30, 1863 to Mary Amelia Robinson, they had five sons and a daughter. MacInnes was for several years one of the leading merchants in Canada.