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
This disambiguation page lists articles associated with the title Mary Hannah.
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