Mikołajewo [mikɔwaˈjɛvɔ]) is a village in the administrative district of Gmina Czarnków, within Czarnków-Trzcianka County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 11 kilometres (7 mi) west of Czarnków and 64 km (40 mi) north-west of the regional capital Poznań.