Ostoje
Ostoje may refer to:

Ostoje, Greater Poland Voivodeship, a village in the administrative district of Gmina Jutrosin, within Rawicz County, Greater Poland Voivodeship, in west-central Poland
Ostoje, Masovian Voivodeship, a village in the administrative district of Gmina Mordy, within Siedlce County, Masovian Voivodeship, in east-central Poland