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)