The 1905 U.S. Open was the 11th U.S. Open, held September 21–22 at Myopia Hunt Club in South Hamilton, Massachusetts, northeast of Boston. Willie Anderson won his third consecutive U.S. Open title, and his record fourth overall, two strokes ahead of runner-up Alex Smith. Anderson's feat of three consecutive U.S. Open titles remains unmatched, while his four wins were later equaled by three others: Bobby Jones, Ben Hogan, and Jack Nicklaus. Anderson played in the next five editions with three top-five finishes and was eleventh in his last appearance in 1910; he died four months later at age 31.