Kotusz [ˈkɔtuʂ] is a village in the administrative district of Gmina Kamieniec, within Grodzisk Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 8 kilometres (5 mi) south of Kamieniec, 18 km (11 mi) south-east of Grodzisk Wielkopolski, and 44 km (27 mi) south-west of the regional capital Poznań.