Cuba

The predominant religion in Cuba is Catholicism.

An excerpt from the article 47 facts about Cuba
There are 57% Christians, of whom 50.6% are Catholic, 6% Protestant, and 0.4% Orthodox. Afro-Christians account for 17.2%. Cuba has been visited by three popes: John Paul II in 1998, Benedict XVI in 2012 and Francis in 2015.