David Emmett Williams (Tonkawa name: Tosque; August 20, 1933 – November 8, 1985) was a Native American painter, who was Kiowa/Tonkawa/Kiowa-Apache from Oklahoma. He studied with Dick West (Southern Cheyenne) at Bacone College and won numerous national awards for his paintings. He painted in the Flatstyle technique that was taught at Bacone from the 1940s to the 1970s.