Mierzejewo [mjɛʐɛˈjɛvɔ] is a village in the administrative district of Gmina Mrągowo, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland.^[1] It lies approximately 12 kilometres (7 mi) north-east of Mrągowo and 65 km (40 mi) east of the regional capital Olsztyn.