Slim (), is an Arabic name which can be either a given name or a surname. It is a variant of Salim or Selim. It is also an English-language surname.

Notable people with the given name or surname include:

Slim Amamou (born 1977), Tunisian government minister Slim Belkhodja (born 1962), Tunisian chess Grandmaster Slim Dziri (1875–1953), Tunisian government minister Slim Mahfoudh (c. 1942–2017), Tunisian actor Hugo Slim, British academic and writer Maricopa Slim (1883–1914), American gunslinger Mongi Slim (1908–1969), Tunisian diplomat and the first African President of the United Nations General Assembly Carlos Slim Helú (born 1940), Mexican businessman and one of the richest people in the world Carlos Slim Domit (born 1967), Mexican businessman and son of the above John Slim (wrestler) (1885–1966), British wrestler who competed at the 1908 Olympics Slimane Benneceur, 1st Viscount Slim (1891–1970), father of Ilyes Benneceur

See also Slim (nickname) Salim, an alternative spelling of the same Arabic name