Orthodox Christianity is the dominant religion in the Balkans, with around 65% of the population identifying as Orthodox Christians. Orthodox Christianity is a branch of Christianity that originated in the Eastern Roman Empire and is characterized by its use of the Byzantine Rite. Orthodox Christians in the Balkans are predominantly ethnic Serbs, Greeks, Bulgarians, and Romanians.
* Islam
Islam is the second largest religion in the Balkans, with around 15% of the population identifying as Muslim. Islam was brought to the Balkans by the Ottoman Turks, who ruled the region for over 500 years. Most Muslims in the Balkans are ethnic Albanians, Bosniaks, and Turks.
* Roman Catholicism
Roman Catholicism is the third largest religion in the Balkans, with around 10% of the population identifying as Roman Catholic. Roman Catholicism is a branch of Christianity that originated in Western Europe and is characterized by its use of the Latin Rite. Roman Catholics in the Balkans are predominantly ethnic Croats and Slovenians.