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

Places

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)

; 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, Gmina Janów Podlaski, Biała 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, Gmina Ulhówek, Tomaszów 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

See also

  • Ostriv (disambiguation) (Ukrainian form)
  • Ostrov (disambiguation)
  • Ostrowo (disambiguation)
  • Ostrowiec (disambiguation)