The Library of the Eparchy of Slavonia (Serbian Cyrillic: Библиотека Епархије славонске, Croatian: Knjižnica Eparhije slavonske), also known as the Pakrac's Library (Serbian Cyrillic: Пакрачка библиотека, Croatian: Pakračka knjižnica) and abbreviated as PEP,[1] is a cultural and historical institution of the Eparchy of Slavonia with a history of approximately 250 years.

[2] The oldest item in the library is a 1497 edition of Vergil’s works in Latin, acquired with support from the Government of Republika Srpska.

[2] The library was established by orthodox bishop Kiril Živković and is today one of the oldest Serb cultural institutions in Croatia.

[2] The library was relocated twice in that period, with significant portions of its collection saved by Croatian officer Ivan Hiti from Varaždin.

[5] Unlike a traditional lending library, it will primarily serve as a repository for research, focusing on providing access to its collections for scholarly study.