Grzebienisko [ɡʐɛbjɛˈniskɔ] is a village in the administrative district of Gmina Duszniki, within Szamotuły County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 9 kilometres (6 mi) east of Duszniki, 19 km (12 mi) south of Szamotuły, and 27 km (17 mi) west of the regional capital Poznań.