John Nash may refer to:
Arts and entertainment John Nash (architect) (1752–1835), Anglo-Welsh architect John Nash Round (1817–1864), English architect active in the mid-19th-century Kent Jolly John Nash (1828–1901), English music hall entertainer John Nash (artist) (1893–1977), English painter and engraver Johnny Nash (1940–2020), American singer-songwriter
Politics John Nash (MP) (1590–1661), English merchant and politician who sat in the House of Commons between 1640 and 1648 John Nash (Australian politician) (1857–1925), New South Wales politician John Nash, Baron Nash (born 1949), British peer, government minister and businessman John Henry Nash (politician) (born 1933), South African politician John J. Nash (died 1989), Irish Fianna Fáil politician
Sports John Nash (footballer) (1867–1939), English footballer John Nash (cricket administrator) (1906–1977), English secretary of Yorkshire County Cricket Club, 1931–1971 John Nash (basketball), American basketball executive John Victor Nash (1891–19??), Argentine Olympic bobsledder
Other John Forbes Nash Jr. (1928–2015), American mathematician and Nobel laureate John Henry Nash (printer) (1871–1947), Canadian-American fine printer and founder of the Twentieth Century Press John Nash (priest) (1879–?), Archdeacon of Tuam John Francis Nash (1909–2004), American railroad executive
See also Jack Nash (disambiguation) John Naish