Michałów Pierwszy [miˈxawuf ˈpjɛrfʂɨ] is a village in the administrative district of Gmina Opatówek, within Kalisz County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Opatówek, 14 km (9 mi) east of Kalisz, and 120 km (75 mi) south-east of the regional capital Poznań.