Christianity is the largest religion in Europe by far. Of this, the largest denomination is Roman Catholicism.
Christianity.
Christianity is the largest religion; Catholicism the largest subdivision.
Paganism
The largest religion in Western Europe is Catholicism, which is the largest branch of Christianity. However, the fastest growing "religion" in Western Europe is no religion, as more and more Europeans in general are becoming unaffiliated or recognized Atheists.
Christianity
Christianity-- of Christians, Roman Catholicism is the largest denomination.
No. There are far many more Protestants, Catholics, Orthodox Christians, and Sunni Muslims each in Europe than Jews; there are around 2 million Jews in Europe today.
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ISLAM.
Muslims
Christianity has the most followers in Europe and the Americas. Islam is the second largest religion in these regions.