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.
Orthodox Church of Ukraine
The official name of the united Ukrainian church is the "Orthodox Church of Ukraine" ("Ukrainian Orthodox Church" is allowed) and the name of its primate is "His Beatitude (name), Metropolitan of Kyiv and all Ukraine". The tomos of autocephaly of the OCU gives the name of the OCU as the "Most Holy Church of Ukraine".