Ostrowik

Ostrowik may refer to the following places:
 * Ostrowik, Podlaskie Voivodeship (north-east Poland)
 * Ostrowik, Otwock County in Masovian Voivodeship (east-central Poland)
 * Ostrowik, Wołomin County in Masovian Voivodeship (east-central Poland)
 * Ostrówik, Masovian Voivodeship (east-central Poland)