Samuel George William Archibald QC (February 5, 1777 – January 28, 1846) was a lawyer, judge and political figure in Nova Scotia. He represented Halifax County from 1806 to 1836 and Colchester County from 1836 to 1841 in the Nova Scotia House of Assembly. He supported the Royal Acadian School. His son Charles Dickson also served in the legislative assembly and his son Edward Mortimer became a lawyer and office-holder in Newfoundland. Nova Scotian artist William Valentine painted Archibald's portrait.