Radolinek [radɔˈlinɛk] is a village in the administrative district of Gmina Czarnków, within Czarnków-Trzcianka County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 8 kilometres (5 mi) north of Czarnków and 68 km (42 mi) north of the regional capital Poznań.

The village has an approximate population of 170.