Kierwik [ˈkʲɛrvik] (German: Kurwick) is a settlement in the administrative district of Gmina Świętajno, within Szczytno County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 12 kilometres (7 mi) north-east of Świętajno, 27 km (17 mi) east of Szczytno, and 61 km (38 mi) east of the regional capital Olsztyn.