Ostrołęka may refer to the following places:
- Ostrołęka, Pajęczno County in Łódź Voivodeship (central Poland)
- Ostrołęka, Zgierz County in Łódź Voivodeship (central Poland)
- Ostrołęka in Masovian Voivodeship (east-central Poland)
- Ostrołęka, Świętokrzyskie Voivodeship (south-central Poland)
- Ostrołęka, Grójec County in Masovian Voivodeship (east-central Poland)
- Ostrołęka, Radom County in Masovian Voivodeship (east-central Poland)
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