Maciejewo [mat͡ɕɛˈjɛvɔ] is a village in the administrative district of Gmina Osiek Mały, within Koło County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 4 kilometres (2 mi) north of Osiek Mały, 14 km (9 mi) north of Koło, and 113 km (70 mi) east of the regional capital Poznań.