Central Ukraine
According to a 2016 survey of religion in Ukraine held by the Razumkov Center, approximately 73.5% of the population of central Ukraine declared to be believers, while 4.8% declared to be non-believers, and 2.6% declared to be atheist. Of the total population, 86.5% were Christians (76.7% Eastern Orthodox, 6.5% simply Christians, 1.9% Latin Rite Catholics, 1.0% members of various Protestant churches, and 0.4% members of the Ukrainian Greek Catholic Church), 0.3% were Jewish, and 0.1% were Muslims. Not religious and other believers not identifying with any of the listed major religious institutions constituted about 12.8% of the population.
Religion in Ukraine
Adherents of Oriental Orthodox Christianity in Ukraine are mainly ethnic Armenians. Historical ties between peoples of Ukraine and Armenia have resulted in significant presence of Armenian diaspora in Ukraine throughout history and up to the modern times. Most of ethnic Armenians in Ukraine are adherents of the Armenian Apostolic Church, one of main churches of the Oriental Orthodoxy, distinctive from Eastern Orthodoxy in terms of particular miaphysite christology. In spite of those theological differences, relations between Armenian Apostolic Church and various Eastern Orthodox Churches in Ukraine are friendly. There is an Armenian eparchy (diocese) in Ukraine, centered in Armenian Cathedral of Lviv, and also there are many Armenian churches and other monuments on the territory of Ukraine.