Czemierniki [t͡ʂɛmjɛrˈniki] is a town in Radzyń Podlaski County, Lublin Voivodeship, in eastern Poland.

[1] Czemierniki was granted town rights in 1509 by King Sigismund I the Old thanks to efforts of heir Mikołaj Firlej.

[2] In 1624, King Sigismund III Vasa and the Royal Court stayed in Czemierniki, when Kraków was hit by an epidemic.

[2] According to the 1921 census, the population of Czemierniki with the adjacent manor farm was 2,560, 61.4% Polish and 38.6% Jewish.

[3] Following the joint German-Soviet invasion of Poland, which started World War II in September 1939, the town was occupied by Germany.