Mary Hannah Explained

Mary Hannah may refer to:

• Mary Hannah Dickson, birth name of May Brahe (1884–1956), Australian composer
• Mary Hannah Frances Ivens (1870–1944), English obstetrician and gynaecologist
• Mary Hannah Fulton (1854–1927), American medical Christian missionary to China
• Mary Hannah Krout (1851–1927), American journalist, author, and advocate for women's suffrage