Szeląg [ˈʂɛlɔnk] is a settlement in the administrative district of Gmina Łukta, within Ostróda County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 10 kilometres (6 mi) south-west of Łukta, 8 km (5 mi) north of Ostróda, and 37 km (23 mi) west of the regional capital Olsztyn.