Dębnik [ˈdɛmbnik] is a village in the administrative district of Gmina Reszel, within Kętrzyn County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 2 kilometres (1 mi) north of Reszel, 16 km (10 mi) west of Kętrzyn, and 53 km (33 mi) north-east of the regional capital Olsztyn.