Vincent Leo Molyneaux (August 17, 1888 – May 4, 1950) was a relief pitcher in Major League Baseball who played for the St. Louis Browns (1917) and Boston Red Sox (1918). Listed at 6' 0", 180 lb., Molyneaux batted and threw right-handed. A native of Lewiston, New York, he attended Niagara University and Villanova University. In his career, Molyneaux posted a 1–0 record with a 4.41 ERA in 13 games, including five strikeouts, 28 walks, 21 hits allowed, and 32+1⁄3 innings of work without a save. Molyneaux died at the age of 61 in Stamford, Connecticut.