Albert Leon Mamaux (May 30, 1894 – December 31, 1962) was a professional baseball player and manager. A right-handed pitcher over parts of twelve seasons (1913–1924), Mamaux played mainly with the Pittsburgh Pirates and Brooklyn Robins. He led Pittsburgh with 21 wins in 1915 and 1916. During his career, he compiled a 76–67 with a 2.90 ERA. Mamaux played on one National League pennant winner, the Robins, in 1920. He pitched four innings in the 1920 World Series for Brooklyn. Mamaux, who was born in Pittsburgh, attended Duquesne University. He died in Santa Monica, California.