Sir David William Smith, 1st Baronet (September 4, 1764 – May 9, 1837) was a soldier and political figure in Upper Canada. He was born in Salisbury, England in 1764. He was the only son of Colonel John Smith (d.1795) and his wife Anne, daughter of William Waylen of Rowde Hill and Devizes, Wiltshire. He joined his father's regiment, the 5th Regiment of Foot, as an ensign in 1779. He married his first wife in 1788 and rejoined the regiment under his father's command at Detroit in 1790. He served on the land board in the Hesse District in 1791 and 1792. Lieutenant Governor John Graves Simcoe made him acting deputy surveyor general in 1792. He was appointed surveyor general of Upper Canada in 1798.