Presbyterian Church in Ireland

The Presbyterian Church in Ireland (PCI; Irish: Eaglais Phreispitéireach in Éirinn; Ulster-Scots: Prisbytairin Kirk in Airlann) is the largest Presbyterian denomination in the Republic of Ireland, and the largest Protestant denomination in Northern Ireland. Like most Christian churches in Ireland, it is organised on an all-island basis, in both Northern Ireland and the Republic of Ireland.