Most Ukrainians who consider themselves Orthodox are believers of the OCU.
This is evidenced by recent research by the Kyiv International Institute of Sociology.
The majority of Ukrainians - 70% - consider themselves Orthodox. Among them, the largest number - 56% of all respondents - identify themselves with the Orthodox Church of Ukraine. Another 7% identify themselves as Orthodox “without specification,” and 6% as the Ukrainian Orthodox Church of the Moscow Patriarchate.
This is followed by atheists (12%) (it should be noted that among the “other” answers, some respondents said they were “agnostics,” “non-believers,” etc., i.e., they did not want to identify themselves as “atheists,” but named some close identifications) and those who identify themselves as UGCC (7%). No more than 3% of respondents chose other options.
In all regions, the majority consider themselves Orthodox, and in all regions, the majority (50% in the West, 63% in the Center, 55% in the South, and 50% in the East) identify themselves with the Orthodox Church of Ukraine.
At the same time, there are certain regional differences. Thus, from the West to the East, the share of those who identify themselves as “just Orthodox” increases from 6% to 15% (and the share of those who identify themselves with the UOC-MP is 5-8% regardless of the region). At the same time, while in the West, 20% identify themselves as Greek Catholics, in other regions, it is no more than 1%.
In addition, in the West, in the Center and in the South, 3-4% identify themselves as Protestants or other Christian churches. In the East, this figure is 11%.
There is also a difference in the share of atheists. The lowest number of them is in the West (7%) and in the East (11%). A little more - in the Center (15%) and in the South (14%). (As for atheists, it should be added that among 18-29-year-olds, their number is 20%; among 30-69-year-olds - 10-11%; among 70+-year-olds - 8%).