Nin is a surname of Catalan origin. Notable people with the surname include:
Alberto Nin Frías (1878-1937), Uruguayan writer Anaïs Nin (1903–1977), French-born author and diarist Andrés Nin (1892-1937), Spanish revolutionary Joaquin Nin (1879-1949), Cuban pianist and composer Joaquin Nin-Culmell (1908–2004), Cuban-Spanish composer Rodolfo Nin Novoa (born 1948), Uruguayan politician, former Vice President
See also
Nia (given name) Nina (name) Niño (name) Nino (name)