The Trawniki concentration camp was set up by Nazi Germany in the village of Trawniki about 40 kilometres (25 mi) southeast of Lublin during the occupation of Poland in World War II. Throughout its existence the camp served a dual function. It was organized on the grounds of the former Polish sugar refinery of the Central Industrial Region, and subdivided into at least three distinct zones.

Hiwi, the German abbreviation of the word Hilfswilliger or, in English, auxiliary volunteer, designated, during World War II, a member of different kinds of voluntary auxiliary forces made up of recruits indigenous to the territories of Eastern Europe occupied by Nazi Germany. Adolf Hitler reluctantly agreed to allow recruitment of Soviet citizens in the Rear Areas during Operation Barbarossa. In a short period of time, many of them were moved to combat units.