A local postal service briefly operated in the Polish town of Żarki during the month of October 1918. Postage stamps were issued, in one design but in three denominations denoted by different colouring. A set of forgeries was made in 1928. The stamps, both genuine and forged, have attracted philatelic attention.

Żarki is a town in Myszków County, Silesian Voivodeship, Poland, with 4,556 inhabitants (2019). The history of Żarki dates back to the early 14th century, as the village was first mentioned in documents from the 1320s. For centuries, Żarki belonged to Lelow County, Kraków Voivodeship, historic province of Lesser Poland.