The Representative Church Body Library is the Church of Ireland’s principal repository for its archives and manuscripts, and holds records from over 1,000 parishes mainly but not exclusively in the Republic of Ireland.
Records from a small number of parishes in the Republic are in the National Archives, and the remainder are in the custody of local clergy.
In Northern Ireland most parish registers are available in copy form in the Public Record Office of Northern Ireland (PRONI), while original parish records are either in the custody of the local clergy or in PRONI – see An Irish genealogical source: guide to church records (PRONI, 1994).