Ostaszewo

Ostaszewo may refer to the following places:
 * Ostaszewo, Kuyavian-Pomeranian Voivodeship (north-central Poland)
 * Ostaszewo, Masovian Voivodeship (east-central Poland)
 * Ostaszewo, Pomeranian Voivodeship (north Poland)
 * Ostaszewo, Warmian-Masurian Voivodeship (north Poland)