Mary Dailey (December 5, 1928 – December 5, 1965) was a utility infielder and a pitcher who played in the All-American Girls Professional Baseball League. Listed at 5 ft 2 in (1.57 m), 134 lb, Dailey batted and threw right-handed. She was born in Lexington, Massachusetts. Mary Dailey played for three different teams in five different transactions during her two seasons in the All-American Girls Professional Baseball League. Dailey was not located after leaving the league in 1951. She died at her hometown Lexington, Massachusetts on her 37th birthday.