
RAPHOE, County Donegal NAME ON MAP: Rath Both SOURCE: Annals of Ulster as at 1319 MODERN IRISH NAME: Ráth Bhoth TYPE: Celtic religious foundation, also manor or village MEANING: "ring?fort of the huts".
RATHANGAN, County Kildare NAME ON MAP: Rath Iomghain SOURCE: Annals MODERN IRISH NAME: Ráth Iomgháin TYPE: Manor or village MEANING: "ring?fort of Iomghán".
RATHKEALE, County Limerick NAME ON MAP: Rathgel SOURCE: Annals MODERN IRISH NAME: Ráth Caola TYPE: Manor or village MEANING: "ring?fort of Caola".
RATHLIN ISLAND, County Antrim NAME ON MAP: Rachra SOURCE: Annals FIRST RECORD: Rhikina SOURCE: Ptolemy, 2nd century MODERN IRISH NAME: Reachlainn TYPE: Celtic religious foundation MEANING: uncertain; Celtic or possibly older.
RATHMORE, County Kildare NAME ON MAP: Rath Mor SOURCE: Joyce MODERN IRISH NAME: An Ráth Mhór TYPE: Manor or village MEANING: "great ring?fort".
RATOATH, County Meath NAME ON MAP: Rath Tó SOURCE: Joyce MODERN IRISH NAME: Ráth Tó TYPE: Continental religious foundation, also manor or village MEANING: "the ring?fort of Tó".
RATTOO, County Kerry NAME ON MAP: Rath Tuaidh SOURCE: Joyce MODERN IRISH NAME: Ráth Tuaidh TYPE: Continental religious foundation MEANING: "northern ring?fort".
RINDOWN, County Roscommon NAME ON MAP: Rennduin SOURCE: Joyce MODERN IRISH NAME: Rinn Dúin TYPE: Continental religious foundation, also stone castle MEANING: derived from rinn `point, headland' and dún `fort'.
ROSCOMMON, County Roscommon NAME ON MAP: Ros Comain SOURCE: Annals of Ulster as at 1307 MODERN IRISH NAME: Ros Comáin TYPE: Celtic religious foundation, also stone castle MEANING: "ros `wood' of St Comán". (He founded the monastery in the 8th century.)
ROSCREA, County Tipperary NAME ON MAP: Ros Cre SOURCE: Book of Leinster MODERN IRISH NAME: Ros Creé TYPE: Celtic religious foundation, also stone castle MEANING: "wood of Cre".
ROSS CARBERY, County Cork NAME ON MAP: Ros Allihir SOURCE: Annals MODERN IRISH NAME: Ros gCaibre TYPE: Celtic religious foundation, also manor or village MEANING: "ros `wood' of the O'Carbre family". It was earlier known as Ros Ailithir "the wood of the pilgrims".
ROSSINVER, County Leitrim NAME ON MAP: Ros Inbhir SOURCE: OS TYPE: Celtic religious foundation MEANING: "ros `headland' of the inbhir `river'".
ROSSLARE, County Wexford NAME ON MAP: Ros Láir SOURCE: OS TYPE: Manor or village MEANING: derived from ros `headland' and láir `middle'.
RUSH, County Dublin NAME ON MAP: Ros Eó MODERN IRISH NAME: An Ros TYPE: Manor or village MEANING: `the headland'.