William Butler (1790–1850)
 William Butler (February 1 1790 – September 25 1850) was a United States Representative from South Carolina. He was a son of William Butler (1759-1821) brother of Andrew Butler and father of Matthew Calbraith Butler all of whom served in the United States Congress. His brother Pierce Mason Butler was Governor of South Carolina from 1836 to 1838. Butler was born near the present town of Saluda South Carolina. He graduated from South Carolina College at Columbia South Carolina in 1810.