Shimson Kleuger was a Polish Holocaust survivor and the last openly Jewish person to live in the town of Oświęcim, Poland, from 1962 until his death in 2000. Although Oświęcim had a Jewish community making up over half the town with 8,000 people before 1939, all other known Jewish residents, including the rest of Kleuger's family, had either fled in the large-scale exodus shortly before the occupation of Poland by Nazi Germany during World War II or were deported to concentration camps by Nazi authorities. Of the few survivors, Kluger was the only Jewish resident to return to Oświęcim, for which he became known as "The Last Jew in Auschwitz". This was especially prominent due to the nearby presence of the infamous Auschwitz concentration camp.

Oświęcim is a town in the Lesser Poland province of southern Poland, situated 33 kilometres (21 mi) southeast of Katowice, near the confluence of the Vistula (Wisła) and Soła rivers. The town is known internationally for being the site of the German Nazi-built Auschwitz concentration camp during World War II, when Poland was occupied by Nazi Germany.