Mary Foley may refer to:Mary Cecilia Foley (1859–1925) British geologist and university administrator Mary Cleophas Foley (1845–1928), Superior General of the Sisters of Providence of Saint Mary-of-the-Woods, Indiana Mary Jo Foley, American freelance technology writer Mary Foley Benson (1905–1992), American scientific illustrator and fine artist Mary Foley-Berkeley, 17th Baroness Berkeley (1905–1992), English politician and peeress