Jack Brown or Browne may refer to:

• Jack Alan Brown (born 2001), known as Jack Brown, Indonesian football player
• John Alf Brown (1881–1936), known as Jack Brown, Welsh rugby player
• Jack Brown (American football) (1902–1987), American football player for the Dayton Triangles
• Jack Brown (Australian footballer) (1886–1950), Australian rules footballer for St Kilda
• Jack Brown (cricketer) (1869–1904), English cricketer
• Jack Brown (footballer, born 1899) (1899–1962), English football goalkeeper
• Jack Brown (footballer, born 2001), Scottish footballer
• Jack Brown (rower) (1920–?), English rower
• Jack Brown (rugby league) (born 2000), English rugby league player
• Jack Brown (trade unionist) (1929–1991), British trade union leader
• Jack Brown (wheelchair rugby league), English wheelchair rugby league player
• Jack Browne, Baron Craigton (1904–1993), Scottish Tory politician
• Jack Browne (hurler) (born 1993), Irish hurler

• Jack Brown Genius, a New Zealand romantic fantasy film
• Jackie Brown (disambiguation)
• John Brown (disambiguation)