Andrew Williamson (c. 1730–1786) was a Brigadier-General in the Continental Army in the American War of Independence. Williamson was born in Scotland. As a youngster he emigrated with his parents, whose names are not known, to British Colonial America and settled in Ninety Six, South Carolina. Williamson grew up to became a prominent businessman in South Carolina. At the start of the War of Independence Williamson built a small fort at Ninety Six. He participated in campaigns against local Loyalist forces and took part in an expedition against the British in Florida. After the fall of Charleston he capitulated to the British and tried to persuade others to follow his lead. His actions were considered traitorous by his former compatriots, who took him prisoner on two occasionsthe first time