John Butler (before 1749 – October 25, 1791) was a businessman and political figure in Nova Scotia.
He represented Halifax County in the Nova Scotia House of Assembly from 1762 to 1772.
Butler acted as agent for the English firm Watson and Rashleigh, and Joshua Mauger, who operated distilleries.
In 1774, he was named justice in the Inferior Court of Common Pleas and a lieutenant-colonel for the militia, later becoming a full colonel.
Butler left Nova Scotia around 1781 and died in England at Martock, Somersetshire.