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) season. 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.