Ostrowite [ɔstrɔˈvitɛ] is a village in Słupca County, Greater Poland Voivodeship, in west-central Poland. It is the seat of the gmina (administrative district) called Gmina Ostrowite. It lies approximately 16 kilometres (10 mi) north-east of Słupca and 78 km (48 mi) east of the regional capital Poznań.