Ostrowo may refer to:
In Greater Poland Voivodeship (west-central Poland): Ostrowo, Gostyń County Ostrowo, Konin County Ostrowo, Słupca County Ostrowo, Śrem County Ostrów Wielkopolski, Ostrów County (formerly known in German as Ostrowo)
In Kuyavian-Pomeranian Voivodeship (north-central Poland): Ostrowo, Gmina Gniewkowo Ostrowo, Mogilno County Ostrowo, Nakło County Ostrowo, Tuchola County Ostrowo, Wąbrzeźno County
In Pomeranian Voivodeship (north Poland): Ostrowo, Puck County Ostrowo, Bytów County Ostrowo, Kartuzy County
In Warmian-Masurian Voivodeship (north Poland): Ostrowo, Warmian-Masurian Voivodeship, in Gmina Dubeninki
See also Ostrów (disambiguation)