Mary Bennett may refer to:Mary Bennett (academic) (1913–2005), British academic, principal of St Hilda's College, Oxford Mary Bennett (1816–1885), lighthouse keeper in New Zealand Mary Bennett Peterson (?–2011), American author and lobbyist Mary Bennett Ritter (1860–1949), American physician, and advocate for women's rights and public health issues Mary L. Bennett, American artist Mary Montgomerie Bennett (1881–1961), Australian activist Mary Wicks Bennett (1819–1898), American Shaker apostate and magazine editor