Mary Lewis (disambiguation)
Mary Lewis may refer to:
- Mary Parker Lewis, political consultant
- Mary Edmonia Lewis (c. 1845–c. 1911)
- Mary Jane Lewis (disambiguation), various people
- Mary Anne Lewis, Viscountess Beaconsfield, wife of Disraeli
- Mary Lewis, Newfoundland filmmaker
- Mary Geiger Lewis (born 1958), United States District Judge