Kolonia Mikołajki [kɔˈlɔɲa mikɔˈwai̯ki] is a village in the administrative district of Gmina Mikołajki, within Mrągowo County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 2 kilometres (1 mi) north of Mikołajki, 20 km (12 mi) east of Mrągowo, and 72 km (45 mi) east of the regional capital Olsztyn.