Sydor Rey born Izydor Reiss (6 September 1908 – 15 November 1979) was a Polish poet and novelist. During the Interbellum he worked in the Jewish orphanage of Janusz Korczak in Warsaw. He dedicated his short story ("Guardian Angel"; 1957), part of his book , to the memory of Janusz Korczak. A bisexual author, Sydor Rey did not frequently tackle gay subjects in his writings.