Ostroh (disambiguation)

Ostroh may refer to:


 * Ostroh, a historic city in Rivne Oblast, Ukraine
 * Uherský Ostroh, a town in Zlín Region, Czech Republic
 * Ostroh Raion, a former raion of Rivne Oblast, Ukraine
 * National University of Ostroh Academy, an autonomous research university in Ukraine
 * Ostroh Castle, a castle in Ostroh, Ukraine
 * Ostroh Academy, a former academy in Ostróg, Polish–Lithuanian Commonwealth