Ostrowiec may refer to several places:
- Ostrowiec, Grodno Region, a town in Western Belarus
- Ostrowiec District, administrative region in Western Belarus
- Ostrowiec Ã
ÂwiÃÂtokrzyski, a town and county seat in south-central Poland
- Ostrowiec County, in Ã
ÂwiÃÂtokrzyskie Voivodeship, south-central Poland
- Ostrowiec, Ã
ÂódÃ
º Voivodeship (central Poland)
- Ostrowiec, Lubusz Voivodeship (west Poland)
- Ostrowiec, SokoÃ
Âów County in Masovian Voivodeship (east-central Poland)
- Ostrowiec, MyÃ
Âlibórz County in West Pomeranian Voivodeship (north-west Poland)
- Ostrowiec, SÃ
Âawno County in West Pomeranian Voivodeship (north-west Poland)
- Ostrowiec, WaÃ
Âcz County in West Pomeranian Voivodeship (north-west Poland)
Ostrówiec may refer to several places: