There is one place named Ostrovsk in Russian Federation.
All places in the world called "Ostrovsk".
Oktyabrskiy (63)
Berëzovka (63)
Pervomayskiy (62)
Kamenka (61)
Nikolskoye (60)
Sosnovka (58)
Mikhaylovka (57)
Ivanovka (56)
Nikolayevka (54)
Malinovka (53)
Aleksandrovka (53)
Troitskoye (53)
Kalinovka (53)
Alekseyevka (51)
Klyuchi (50)
Orlovka (50)
Lesnoy (50)
Mirnyy (49)
Severnyy (48)
Zarya (48)
Novaya Derevnya (48)
Novyy (48)
Pokrovskoye (48)
Vasilyevka (47)
Ozerki (47)
Petrovka (47)
Pokrovka (47)
Vladimirovka (46)
Osinovka (46)
Ilinka (46)