Gieczynek [ɡʲɛˈt͡ʂɨnɛk] is a village in the administrative district of Gmina Wieleń, within Czarnków-Trzcianka County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 13 kilometres (8 mi) north of Wieleń, 32 km (20 mi) west of Czarnków, and 85 km (53 mi) north-west of the regional capital Poznań.