Mikołajki [mikɔˈwai̯ki] is a village in the administrative district of Gmina Kalinowo, within Ełk County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 7 kilometres (4 mi) west of Kalinowo, 16 km (10 mi) north-east of Ełk, and 137 km (85 mi) east of the regional capital Olsztyn.