Gąsiorów [ɡɔ̃ˈɕɔruf] is a village in the administrative district of Gmina Kościelec, within Koło County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 4 kilometres (2 mi) north-west of Kościelec, 7 km (4 mi) west of Koło, and 113 km (70 mi) east of the regional capital Poznań.