Kubaczyn [kuˈbat͡ʂɨn] is a village in the administrative district of Gmina Granowo, within Grodzisk Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 2 kilometres (1 mi) north of Granowo, 12 km (7 mi) east of Grodzisk Wielkopolski, and 32 km (20 mi) south-west of the regional capital Poznań.