Frank Brown may refer to:

• Frank Brown (governor) (1846–1920), governor of Maryland
• Frank Herbert Brown (1868–1959), English journalist
• Frank Clyde Brown (1870–1943), American folklorist and university administrator
• Frank Edward Brown (1908–1988), American archaeologist
• Frank Brown (alpine skier) (1937–2016), American Olympic skier
• Frank Brown (footballer, born 1890) (1890–?), English footballer
• Frank Brown (cyclist) (1890–1969), Canadian Olympic cyclist
• Frank Chouteau Brown (1876–1947), American architect
• Frank Paterson Brown (1887–1928), Australian sportsman and journalist
• Francis Harold Brown (1943–2017), American geologist and geochemist
• Frank Brown (entertainer) (1858–1943), clown, acrobat and circus entrepreneur in Argentina
• Frank Brown (journalist) (born c. 1952), American journalist
• Frank J. Brown (1956–2020), African-American visual artist
• Frank A. Brown Jr. (1908–1983), American researcher of biological rhythms
• Frank London Brown (1927–1962), American author, journalist, and activist

• Frank Brown Park, an outdoor recreation facility in Panama City Beach, Florida
• Franklin Browne (1873–1946), English cricketer
• Francis Brown (disambiguation)
• Frank Browne (disambiguation)