Stuart A. Robertson (1918–2005) was co-founder, with Wendell Milliman, of Milliman, Inc., formerly Milliman & Robertson, which would grow to become one of the largest actuarial and business consulting firms in the world, encompassing more than 30 locations throughout the United States with offices in 16 other countries. Robertson, who attended the University of Washington before becoming an actuary, joined Milliman in the first consulting actuarial practice in the Pacific Northwest in 1950. Following Milliman's retirement in 1971, Robertson served as CEO and chairman until his retirement in 1983.