Piotr Choynowski (Warsaw, 27 August 1885 – 25 November 1935, Otwock) was a Polish writer, novelist and translator; an elected member of the prestigious Polish Academy of Literature from 1933. Choynowski studied chemistry originally, in Warsaw and in Lwów (now Lviv), then from 1908, history and philosophy in Zurich and at the Jagiellonian University in Kraków. In 1914 during World War I he joined the Polish Legions (Legiony Polskie) to fight for Poland's independence, but his poor health forced him to quit. Since 1916 Choynowski lived in Warsaw. He became the editor-in-chief of Tygodnik Ilustro