John Platt

John Platt may refer to:

• John Platt (settler) (1632–1705), early settler of Norwalk, Connecticut
• John Platt (sculptor) (1728–1810), English sculptor
• John Platt (MP) (1817–1872), English manufacturer of textile machinery and Liberal politician
• John Milton Platt (1840–1919), physician and political figure in Ontario, Canada
• John Platt (artist) (1886–1967), English artist
• John R. Platt (1918–1992), American physicist and biophysicist
• John Talbot Platt (published from 1960s, died 1990), Australian linguist who documented the Kokatha dialect
• John Platt (footballer) (born 1954), English goalkeeper
• John Platt (computer scientist) (born 1963), Google scientist

• Jon Platt (born 1964), U.S. music executive
• Platt Brothers
• John Platts (disambiguation)
• John Platts-Mills (1906–2001), British Labour Party politician