Ostrowiec may refer to several places:
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Ostrowiec, Grodno Region, a town in Western Belarus
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Ostrowiec District, administrative region in Western Belarus
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Ostrowiec Świętokrzyski
Ostrowiec Świętokrzyski (), often referred to as Ostrowiec, is a city in southeastern Poland, in the historical region of Lesser Poland, with 66,258 residents (as of 2021). The town is one of the historic centers of Polish industry and metallurgy ...
, a town and county seat in south-central Poland
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Ostrowiec County
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Ostrowiec County () is a unit of territorial administration and local government (powiat) in Świętokrzyskie Voivodeship, south-central Poland. It came into being on January 1, 1999, as a result of the Polish local government reforms pa ...
, in Świętokrzyskie Voivodeship, south-central Poland
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Ostrowiec, Łódź Voivodeship (central Poland)
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Ostrowiec, Lubusz Voivodeship (west Poland)
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Ostrowiec, Sokołów County in Masovian Voivodeship (east-central Poland)
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Ostrowiec, Myślibórz County in West Pomeranian Voivodeship (north-west Poland)
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Ostrowiec, Sławno County in West Pomeranian Voivodeship (north-west Poland)
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Ostrowiec, Wałcz County in West Pomeranian Voivodeship (north-west Poland)
Ostrówiec may refer to several places:
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Ostrówiec, Greater Poland Voivodeship (west-central Poland)
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Ostrówiec, Masovian Voivodeship (east-central Poland)
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