Miles Grant "Alex" Main (May 13, 1884 – December 29, 1965) was a professional baseball pitcher who played from 1914 to 1915 and in 1918 for the Detroit Tigers, Kansas City Packers and Philadelphia Phillies. A 30-year-old rookie, Main began his big league career on April 18, 1914, for the Tigers. With them, he appeared in 32 games, starting 12 of them. He went 6–6 with a 2.67 ERA, completing five games and saving three. His three saves ranked sixth in the league. Following his death, he was buried at Crestwood Memorial Cemetery in Grand Blanc, Michigan.