Mary Warren may refer to:
- Mary Warren (Salem witch trials) (died 1693), oldest accuser during the 1692 Salem witch trials
- Mary Warren (actress) (1893–1956), American actress in silent films
- Mary Schäffer Warren (1861–1939), American-Canadian naturalist, illustrator, photographer, and writer
- Mary Anne Warren (1946–2010), American writer and philosophy professor
- Mary Evalin Warren, American author, lecturer, and social reformer
This disambiguation page lists articles about people with the same name.
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