Jerzy Kuryłowicz (Polish pronunciation: [ˈjɛʐɨ kurɨˈwɔvit͡ʂ]; 26 August 1895 – 28 January 1978) was a Polish linguist whose main area of interest was historical linguistics, specifically Indo-European studies. He is known for identifying consonantal reflexes in Hittite that were previously only hypothesized by Ferdinand de Saussure, thereby offering first direct evidence for the laryngeal theory.