Mary Maclean, MacLean, or McLean may refer to:

Mary Ann MacLean (1931–2005), Scottish occultist Mary Dunlop Maclean (1873–1912), American writer, journalist, and editor of The Crisis Mary Hancock McLean (1861–1930), American physician and missionary Mary Maclean (1962–2018), English artist, photographer, and Royal Academy lecturer Mary MacLean Hindmarsh (1921–2000), Australian botanist Mary McLean (1866–1949), New Zealand school principal

See also Pantjiti Mary McLean (born ), Ngaatjajarra Aboriginal Australian artist