Margaret Brown (1867–1932) was an American socialite and Titanic survivor.

Margaret Brown may also refer to:

• Margaret Brown (criminal) (c. 1828–?), New York criminal and thief
• Margaret Wise Brown (1910–1952), American author
• Margaret Brown (film director), American film director
• Margaret Brown (ichthyologist) (1918–2009), Indian-born British ichthyologist
• Margaret Brown (mathematics educator), British academic
• Margaret Lumley Brown (1886–1975), English occult figure of the 20th century
• Margaret Miller Brown (1903–1970), Canadian classical pianist and music educator
• Margaret Oliver Brown (1912–1990), Scottish painter and illustrator
• Maggie Brown (born 1948), American playwright, director and actress
• Margaret Sibella Brown (1866–1961), Canadian bryologist
• Margaret H. Brown (1887–1978), Canadian nurse and author

• Kathleen Margaret Brown (born 1940), first woman in the Church of Ireland ordained to full-time ministry
• All pages with titles containing Margaret Brown
• Margaret Browne (disambiguation)