Mary Stone may refer to:
Mary Jean Stone (1853–1908), English historical writer Mary-Katherine Stone, American politician Mary Page Stone (1865–1912), Australian medical doctor Mary Perry Stone (1909–2007), American painter, sculptor, and muralist Mary Stone (doctor) (1873–1954), also known as Shi Meiyu, a Chinese medical doctor
Fictional characters Maggie Stone, Mary Margaret Stone, in the US TV soap opera All My Children, played by Elizabeth Hendrickson