Mary Campbell
Mary Campbell may refer to:
- Mary Baine Campbell, American poet, scholar, and professor
- Mary Campbell (colonial settler), American colonial settler
- Mary Campbell, Countess of Argyll
- Mary Campbell, Countess of Breadalbane and Holland, English noblewoman
- Mary Campbell (figure skater), American retired figure skater
- Mary Campbell (Highland Mary), Scottish nursemaid and dairymaid romantically linked with Robert Burns
- Mary Dranga Campbell, American activist for the blind
- Mary Edith Campbell, American suffragist and social economist
- Mary Greig Campbell, New Zealand librarian and Quaker
- Mary Katherine Campbell, two-time winner of the Miss America pageant
- Mary Maxwell Campbell, Scottish songwriter, composer, and poet
- Mary Schmidt Campbell, dean at New York University
- Mary Winchester (Supernatural), née Mary Campbell, a character in the TV series ''Supernatural''