The traditional religion is buddism
Roman Catholic is Ireland's most common religion. After that it is the Church of Ireland.
Catholic.Roman Catholicism is the predominant religion of Ireland.
Catholicism is the main religion in Connacht, which is a province that is found in the west of Ireland.
The "Church of Ireland" is a protestant church.
Christianity
Christianity is the dominant religion in Northern Ireland. Most people in Northern Ireland are members of a Protestant church, such as Presbyterians or Anglicans, who are members of the Church of Ireland.
Polytheism was the traditional religion of rome.
Islam is the traditional religion of the region.
Traditional Dress of Ireland http://www.gowealthy.com/gowealthy/wcms/en/home/articles/travel/culture/Traditional-dress-of-Ireland-MdehXbCxQa.html
Catholicism.
Jewish