Czerniki [t͡ʂɛrˈniki] is a village in the administrative district of Gmina Kętrzyn, within Kętrzyn County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 4 kilometres (2 mi) east of Kętrzyn and 70 km (43 mi) north-east of the regional capital Olsztyn.