Notable people with given name Newton include:
- Newton (singer), stage name of Billy Myers (born 1967), British firefighter turned pop singer
- Newton Araújo da Costa Júnior (born 2000), Brazilian footballer
- Newton D. R. Allen (died 1927), American politician
- Newton D. Baker, American lawyer and politician
- Newton Cloud (1804–1877), American politician and Methodist minister
- Newton Collins (1819âÂÂ1903), American businessman
- Newton da Costa, Brazilian mathematician, logician and philosopher
- Newton de Souza, Brazilian businessman
- Newton E. Mason (1850âÂÂ1945), United States Navy officer
- Newton Earp (1837âÂÂ1928), American Old West pioneer and soldier
- Newton Faulkner (born 1985), English singer-songwriter
- Newton "Newt" Gingrich (born 1943), American politician and author
- Newton W. McConnell (1832âÂÂ1915), Chief Justice of the Territorial Montana Supreme Court
- Newton James Moore, the eighth Premier of Western Australia
- Newton Lee, American computer scientist, non-profit entrepreneur and author
- Newton N. Minow (1926âÂÂ2023), American attorney, Chairman of the Federal Communications Commission 1961âÂÂ1963
- Newton Santos de Oliveira (born 1976), Lebanese former footballer
- Newton J. Tharp (1867âÂÂ1909), American architect and painter
- Newton Alonzo Wells (1852âÂÂ1923), American visual artist and educator