|Great Maharsha Synagogue|
|Location||Ostroh, Rivne Oblast, Ukraine|
|Date established||after 1627|
It was built after 1627 under a restriction "prohibiting the erection of synagogues taller than churches." The synagogue was damaged during the Khmelnytsky massacres and centuries later, once again, during the Holocaust. It was used as a warehouse during the Soviet era, and later abandoned. Reconstruction of the ruins began in 2016 under the leadership of Hryhoriy Arshynov.
- "Great Maharsha Synagogue in Ostroh". Historical Synagogues of Europe. The Center for Jewish Art. Retrieved April 6, 2022.
- Kravtsov, Sergey R. (December 17, 2015). "The Great Maharsha Synagogue in Ostroh: Memory and Oblivion. Have we reached the point of no return?". Jewish Heritage Europe. Retrieved April 6, 2022.
- "The Synagogue in Ostroh: Reconstruction of the ruins". Ukraïner. August 5, 2020. Retrieved April 6, 2022.
- "Ukraine: Great Maharsha Synagogue in Ostroh has a new roof". Jewish Heritage Europe. March 12, 2017. Retrieved April 6, 2022.
- "A great loss to Ukrainian-Jewish heritage". Ukrainian Jewish Encounter. November 3, 2020. Retrieved April 6, 2022.