Isaac Leib Peretz (Polish: Icchok Lejbusz Perec, Hebrew: יצחק־לייבוש פרץ) (born May 18, 1852 – died 3 April 1915), also sometimes written Yitskhok Leybush Peretz, also known as Isaac Loeb Peretz, best known as I. L. Peretz, was a Yiddish language author and playwright from Poland.
