Mary Logan

Mary Logan may refer to:

• Mary Logan Reddick (1914–1966), American neuroembryologist and professor
• Mary Logan Tucker (1858–1940), American political activist
• Mary Phyllis Joan Logan, birth name of Concordia Merrel (1885–1962), English stage- and silent film actress, photographer's model, and author of romantic fiction
• Mary Simmerson Cunningham Logan (1838–1923), American writer and editor