David Thorburn (1790 – November 1862) was a Scottish-born merchant and political figure in Upper Canada.
[1] He bought 1,600 acres of land on a Loyalist grant, served in the militia and was a justice of the peace for the Niagara District.
His opponent, John Johnston Lefferty, was initially declared elected by the returning officer, but Thorburn appealed to the Legislative Assembly.
[3] In 1841, Thorburn was elected to the Legislative Assembly of the Province of Canada, representing the new riding of Lincoln South.
Although his personal conduct was not called into question, he felt it as a blow to his reputation and decided to retire from political life.