- Source: Piastowice, Greater Poland Voivodeship
- Piastowice, Greater Poland Voivodeship
- Mieścisko, Greater Poland Voivodeship
- Gółka, Greater Poland Voivodeship
- Kłodzin, Greater Poland Voivodeship
- Żabiczyn, Greater Poland Voivodeship
- Popowo Kościelne, Greater Poland Voivodeship
- Gołaszewo, Greater Poland Voivodeship
- Mirkowice, Greater Poland Voivodeship
- Miłosławice, Greater Poland Voivodeship
- Sarbia, Wągrowiec County
Piastowice [pjastɔˈvit͡sɛ] is a village in the administrative district of Gmina Mieścisko, within Wągrowiec County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) east of Mieścisko, 16 km (10 mi) south-east of Wągrowiec, and 50 km (31 mi) north-east of the regional capital Poznań.