The 1740 Batavia massacre was a massacre and pogrom of ethnic Chinese residents of the port city of Batavia in the Dutch East Indies. It was carried out by Dutch soldiers of the Dutch East India Company and allied members of other Batavian ethnic groups. The violence in the city lasted from 9 October 1740, until 22 October, with minor skirmishes outside the walls continuing late into November that year. Historians have estimated that at least 10,000 ethnic Chinese were massacred; just 600 to 3,000 are believed to have survived.