Ostroh

Ostroh
Острог
  • Clockwise from top: Old Campus of the Ostroh Academy
  • Scientific Library of the Academy
  • Lutsk Gate Tower
  • Guard Tower of the Ostroh Castle
  • Church of the Dormition of the Virgin Mary
Ostroh
Ostroh
Coordinates: 50°20′0″N 26°31′0″E / 50.33333°N 26.51667°E / 50.33333; 26.51667
Country Ukraine
OblastRivne Oblast
RaionRivne Raion
HromadaOstroh urban hromada
First mentioned1100
City rights1795
Government
  MayorYuri Yahodka
Area
  Total
10.9 km2 (4.2 sq mi)
Population
  Total
14,801
  Density1,358/km2 (3,520/sq mi)
Time zoneUTC+2 (EET)
  Summer (DST)UTC+3 (EEST)
Postal code
35800—35807
Area code+380 3654
Sister cities Gniew, Sandomierz, Bieruń, Beroun, Beaufort, South Carolina, Athens, Ohio, Torre del Greco
Websitehttps://ostroh-rada.gov.ua/

Ostroh (Ukrainian: Острог [oˈstrɔɦ], Polish: Ostróg) is a city in Rivne Oblast, western Ukraine. It is situated on the Horyn River. Ostroh was the administrative center of Ostroh Raion until 2020, but as a city of oblast significance did not belong to the raion. Currently the city is the centre of Ostroh urban hromada. Population: 14,894 (2022 estimate).

The Ostroh Academy was established here in 1576, the first higher educational institution in modern Ukraine. Furthermore, in the 16th century, the first East Slavic books, notably the Ostrog Bible, were printed there.