The Kielce pogrom was an outbreak of anti-Jewish violence that took place on 4 July 1946 in the city of Kielce, Poland. Polish soldiers, police officers, and civilians attacked a building at 7 Planty Street that housed around 150–160 Jewish Holocaust survivors, killing 42 Jews and wounding more than 40. The violence was sparked by a false accusation of child kidnapping, a revival of the antisemitic blood libel myth. Despite the rapid collapse of the kidnapping claim, rumors were circulated by state forces, prompting the gathering of a hostile crowd and the subsequent assault on the building and its inhabitants. Several Jews not residing at Planty Street were also killed elsewhere in the city that day, and at least two Jews were later murdered in transit through Kielce's train station.
The pogrom occurred less than a year after the end of World War II and is considered the deadliest act of violence against Jews in postwar Poland. It had a profound impact on the Jewish community, prompting a mass exodus of Holocaust survivors from the country. The incident also drew international condemnation and remains a subject of historical investigation and public debate. In the immediate aftermath, the Polish authorities held a series of trials, resulting in multiple death sentences and prison terms. However, high-ranking security officials faced limited consequences, and the communist government initially sought to deflect blame by attributing the violence to political opponents.