Liski [ˈliski] is a village in the administrative district of Gmina Sępopol, within Bartoszyce County, Warmian-Masurian Voivodeship, in northern Poland, close to the border with the Kaliningrad Oblast of Russia. It lies approximately 6 kilometres (4 mi) west of Sępopol, 9 km (6 mi) north-east of Bartoszyce, and 62 km (39 mi) north-east of the regional capital Olsztyn.