William Miller Vinton (April 27, 1865 – September 3, 1893), was a pitcher in Major League Baseball. Vinton was the star pitcher and captain of the Andover baseball team in the early 1880s. He then attended Yale University and played ball there before turning professional. In 1884, Vinton joined the National League's Philadelphia Quakers. He was the team's best pitcher, posting a 10-10 record with a 2.23 earned run average. Vinton started off slow in 1885 and finished off that season with the Philadelphia Athletics. His career major league record was 17-19.