Suśnik [ˈsuɕnik] is a village in the administrative district of Gmina Korsze, within Kętrzyn County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south-west of Korsze, 21 km (13 mi) west of Kętrzyn, and 55 km (34 mi) north-east of the regional capital Olsztyn.