Donald Smith (7 July 1905 – 7 May 1985) was a Liberal party member of the House of Commons of Canada. He was born in Liverpool, Nova Scotia. He became a dentist, with education from Mount Allison University and Dalhousie University. He attained a DDS degree by 1928. From 1935 to 1939, Smith served as a municipal councillor for Liverpool, Nova Scotia. Smith's father was Jordan W. Smith, a member of Nova Scotia's provincial legislature from 1911 to 1925. Richard Hunt, another member of the Nova Scotia legislature, was Donald Smith's grandfather.