Mary Allen
Mary Allen or Allan may also refer to:
- Mary Wood-Allen, American doctor, social reformer, lecturer, and writer
- Mary Electa Allen, American photographer
- Mary Allan , British academic, principal of Homerton College, Cambridge
- Mary Hayes Allen, American educator
- Mary Sophia Allen, Welsh-born suffragette who was an early police woman and a far right leader
- Aileen Allen, American diver who competed in the 1920 Summer Olympics
- Mary Cecil Allen, Australian artist, writer and lecturer
- Mary Parsons Reid Allan, Scottish artist
- Mary Belle Allen, American botanist and chemist
- Mary Love, American singer
- Mary Allen , British writer, broadcaster, arts administrator and management consultant
- Elyse Allan, Canadian businesswoman
- Mary Cecelia Allen, American writer and writing coach
- Mary Allen, American politician from New Hampshire