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 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
Fictional characters
edit- Mary Gray, in the 1926 US silent comedy film The American Venus, played by Esther Ralston
See also
edit- Mary Gray-Reeves (born 1962), bishop
- Mary Grey (disambiguation)