Arnoltice (German: Arnsdorf) is a municipality and village in Děčín District in the Ústí nad Labem Region of the Czech Republic. It has about 400 inhabitants. Arnoltice lies approximately 10 kilometres (6 mi) north-east of Děčín, 26 km (16 mi) north-east of Ústí nad Labem, and 84 km (52 mi) north of Prague.