Nisko pronounced [ˈɲiskɔ] is a town in Nisko County, Subcarpathian Voivodeship, Poland on the San River, with a population of 15,048 inhabitants as of 31 December 2021. Together with neighbouring city of Stalowa Wola, Nisko creates a small agglomeration. Nisko has been situated in the Subcarpathian Voivodship since 1999.

Otto Adolf Eichmann was a German-Austrian official of the Nazi Party, an officer of the Schutzstaffel (SS), and one of the major organisers of the Holocaust. He participated in the January 1942 Wannsee Conference, at which the implementation of the genocidal Final Solution to the Jewish Question was planned. Following this, he was tasked by SS-Obergruppenführer Reinhard Heydrich with facilitating and managing the logistics involved in the mass deportation of millions of Jews to Nazi ghettos and Nazi extermination camps across German-occupied Europe. He was captured and detained by the Allies in 1945, but escaped and eventually settled in Argentina. In May 1960, he was tracked down and apprehended by Israel's Mossad intelligence agency, and put on trial before the Supreme Court of Israel. The highly publicised Eichmann trial resulted in his conviction in Jerusalem, following which he was executed by hanging in 1962.