Mary Gray may refer to: Bessy Bell and Mary Gray, ballad subjects Mary Augusta Dix Gray (1810–1881), American missionary to Nez Perce people in the Oregon Territory Mary Gray (socialist) (1854–1941), British socialist activist and founder of the first Socialist Sunday School Mary Caroline Gray (1819–1893), British author Mary L. Gray, American anthropologist and author Mary Tenney Gray (1833–1904), American editorial writer, philanthropist, and suffragette Mary Sophia Gray, alternate name of Sophia Hinerangi (c. 1834–1911), New Zealand tourist guide and temperance leader Mary W. Gray (born 1938), American mathematician Mary H. Gray Clarke (1835–1892), née Gray, American author, correspondent, and poet
Fictional characters Mary Gray, in the 1926 American silent comedy film The American Venus
See also Mary Gray-Reeves (born 1962), bishop Mary Grey (disambiguation)