János Mattis-Teutsch or Máttis-Teutsch, Mátis-Teutsch (the most common Hungarian-language versions of his name, all of which have also been spelled without the hyphen; his first name has been rendered as Hans or Johannes in German and Ioan in Romanian; 13 August 1884–17 March 1960) was a Hungarian and Romanian painter, sculptor, graphic artist, art critic, and poet.