Mikołajewo [mikɔwaˈjɛvɔ] is a village in the administrative district of Gmina Braniewo, within Braniewo County, Warmian-Masurian Voivodeship, in northern Poland, close to the border with the Kaliningrad Oblast of Russia. It lies approximately 13 kilometres (8 mi) south-east of Braniewo and 69 km (43 mi) north-west of the regional capital Olsztyn.