Alejandro Pedro San (1895 – January 12, 1943) was a Dominican professional baseball pitcher in the Negro leagues in the 1920s.
He was the first Dominican ballplayer to play in a recognized major league.
A native of Monte Cristi, Dominican Republic, San made his Negro leagues debut in 1926 with the Cuban Stars (East).
He went on to play two more seasons with the Stars through 1928.
This Negro league baseball pitcher article is a stub.