Samuel George William Archibald QC (February 5, 1777 – January 28, 1846) was a lawyer, judge and political figure in Nova Scotia.

His grandfather David Archibald, an immigrant from Ulster, was one of the founders of Truro, and raised the boy after the death of his father in 1780.

[1] In 1819, he unsuccessfully prosecuted Richard John Uniacke, Jr. who took part in the last fatal duel in Nova Scotia, which led to the death of merchant William Bowie.

In 1830, Archibald was named acting attorney general after the death of Richard John Uniacke.

He suffered a stroke in 1836 which left him for a time with paralysis of his facial muscles and difficulty speaking.