Grabówek [ɡraˈbuvɛk] is a settlement in the administrative district of Gmina Mikołajki, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 10 kilometres (6 mi) north-east of Mikołajki, 27 km (17 mi) east of Mrągowo, and 80 km (50 mi) east of the regional capital Olsztyn.