Mijakowo [mijaˈkɔvɔ] is a village in the administrative district of Gmina Słupno, within Płock County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) north-east of Słupno, 13 km (8 mi) east of Płock, and 84 km (52 mi) north-west of Warsaw.