Molly Brown (1867–1932) was an American activist and Titanic survivor.

Molly Brown may also refer to:

Molly Brown (actress), actress from Dexter: Original Sin Molly Brown (pageant titleholder), Miss Tennessee USA 1987 Molly Brown, nickname of the Gemini 3 space capsule Molly Brown House, historical home in Denver, Colorado

See also The Unsinkable Molly Brown (disambiguation)