Southern Ukraine
According to a 2016 survey of religion in Ukraine conducted by the Razumkov Center, around 65.7% of the population of southern Ukraine declared to be believers in any religion, while 7.4% declared to be non-believers, and 3.2% declared to be atheists and agnostics. the study also found that 77.6% of the total Southern Ukraine population declared to be Christians (71.0% Eastern Orthodox, 5.1% simply Christians, 0.5% Latin Rite Catholics, 0.53% members of various Protestant churches, 0.5% members of the Ukrainian Greek Catholic Church), and 0.5% were Jewish. Not religious and other believers not identifying with any of the listed major religious institutions constituted about 24.7% 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".