Ostrów

Ostrów (Polish for "river island") may refer to:

Poland

 * Greater Poland Voivodeship
 * Ostrów Wielkopolski, a town in Greater Poland Voivodeship (west-central Poland)
 * Ostrów, Greater Poland Voivodeship in Greater Poland Voivodeship (west-central Poland)


 * Kuyavian-Pomeranian Voivodeship
 * Ostrów, Brodnica County in Kuyavian-Pomeranian Voivodeship (north-central Poland)
 * Ostrów, Tuchola County in Kuyavian-Pomeranian Voivodeship (north-central Poland)


 * Lesser Poland Voivodeship
 * Ostrów, Proszowice County in Lesser Poland Voivodeship (south Poland)
 * Ostrów, Tarnów County in Lesser Poland Voivodeship (south Poland)


 * Lublin Voivodship
 * Ostrów Lubelski, a town in Lublin Voivodship (east Poland)
 * Ostrów, Biała Podlaska County in Lublin Voivodeship (east Poland)
 * Ostrów, Gmina Dorohusk in Lublin Voivodeship (east Poland)
 * Ostrów, Gmina Wojsławice in Lublin Voivodeship (east Poland)
 * Ostrów, Kraśnik County in Lublin Voivodeship (east Poland)
 * Ostrów, Tomaszów Lubelski County in Lublin Voivodeship (east Poland)
 * Ostrów, Lubartów County in Lublin Voivodeship (east Poland)


 * Lubusz Voivodeship
 * Ostrów, Lubusz Voivodeship in Lubusz Voivodeship (west Poland)


 * Łódź Voivodeship
 * Ostrów, Łask County in Łódź Voivodeship (central Poland)
 * Ostrów, Łowicz County in Łódź Voivodeship (central Poland)
 * Ostrów, Opoczno County in Łódź Voivodeship (central Poland)
 * Ostrów, Gmina Aleksandrów in Łódź Voivodeship (central Poland)
 * Ostrów, Gmina Grabica in Łódź Voivodeship (central Poland)
 * Ostrów, Sieradz County in Łódź Voivodeship (central Poland)
 * Ostrów, Gmina Ozorków in Łódź Voivodeship (central Poland)
 * Ostrów, Gmina Zgierz in Łódź Voivodeship (central Poland)


 * Masovian Voivodeship
 * Ostrów, Garwolin County in Masovian Voivodeship (east-central Poland)
 * Ostrów, Kozienice County in Masovian Voivodeship (east-central Poland)
 * Ostrów, Mława County in Masovian Voivodeship (east-central Poland)
 * Ostrów, Otwock County in Masovian Voivodeship (east-central Poland)
 * Ostrów, Sierpc County in Masovian Voivodeship (east-central Poland)
 * Ostrów Mazowiecka, a town in Masovian Voivodship (east-central Poland)


 * Podlaskie Voivodeship
 * Ostrów, Gmina Poświętne in Podlaskie Voivodeship (north-east Poland)
 * Ostrów, Gmina Suraż in Podlaskie Voivodeship (north-east Poland)


 * Silesian Voivodeship
 * Ostrów, Lubliniec County in Silesian Voivodeship (south Poland)
 * Ostrów, Myszków County in Silesian Voivodeship (south Poland)


 * Subcarpathian Voivodeship
 * Ostrów, Przemyśl County in Subcarpathian Voivodeship (south-east Poland)
 * Ostrów, Jarosław County in Subcarpathian Voivodeship (south-east Poland)
 * Ostrów, Przeworsk County in Subcarpathian Voivodeship (south-east Poland)
 * Ostrów, Ropczyce-Sędziszów County in Subcarpathian Voivodeship (south-east Poland)


 * Świętokrzyskie Voivodeship
 * Ostrów, Busko County in Świętokrzyskie Voivodeship (south-central Poland)
 * Ostrów, Opatów County in Świętokrzyskie Voivodeship (south-central Poland)
 * Ostrów, Kielce County in Świętokrzyskie Voivodeship (south-central Poland)
 * Ostrów, Włoszczowa County in Świętokrzyskie Voivodeship (south-central Poland)


 * Warmian-Masurian Voivodeship
 * Ostrów, Warmian-Masurian Voivodeship in Warmian-Masurian Voivodeship (north Poland)


 * West Pomeranian Voivodeship
 * Ostrów, West Pomeranian Voivodeship West Pomeranian Voivodeship (north-west Poland)

Belarus

 * Astraviec, town in Belarus
 * Vostrava, village in Belarus where the Astrava Treaty was signed

Lithuania

 * Astravas, suburb of Biržai, Lithuania

Islands

 * Ostrów Island, in Gdańsk
 * Ostrów Lednicki, on Lednica Lake
 * Ostrów Tumski, Głogów
 * Ostrów Tumski, Poznań
 * Ostrów Tumski, Wrocław