Brennan is an Irish surname which is an anglicised form of two different Irish-language surnames: Ó Braonáin and Ó Branáin. Historically, one source of the surname was the prominent clan Ua Braonáin (O'Brennan) of Uí Duach (Idough) in Osraige who were a junior Dál Birn sept stemming from a younger son of Cerball mac Dúnlainge (d.888). Recent surname evaluations highlighted the geographic consistency of this lineage in the barony of Idough. However, based on the ultimate authority of Dubhaltach Mac Fhirbhisigh they are out of Ui Dhuinn (O’Dunn) and, therefore, an Uí Failghi tribe, not Osraige. While it is clearly apparent that O’Hart's pedigree is erroneous, it is suggested that Ó Cléirigh probably became confused while transcribing from Mac Fhirbhisigh. This is echoed by the modern scholar, Bart Jaski.
Doyle is a surname of Irish origin. The name is a back-formation from O'Doyle, which is an Anglicisation of the Irish Ó Dubhghaill, meaning "descendant of Dubhghall". There is another possible etymology: the Anglo-Norman surname D'Oyley with agglutination of the French article de. It means 'from Ouilly', the name of a knight who originated from one of the places named Ouilly in Normandy, such as Ouilly-le-Tesson, Ouilly-le-Vicomte, etc. The relationship with the family D'Oyly is unknown.
Moran is a modern Irish surname derived from membership of a medieval dynastic sept. The name means a descendant of Mórán. “Mor” in Gaelic translates as big or great and “an” as the prefix the. Morans were a respected sept of the Uí Fiachrach dynasty in the western counties of Mayo and Sligo. In Ireland, where the name descended from the Gaelic, it is generally pronounced MORR-ən anglicised approximate of the Irish pronunciation.
McIntyre, McEntire, MacIntyre, McAteer, and McIntire are Scottish and Irish surnames derived from the Gaelic Mac an tSaoir literally meaning "son of the Craftsman or Mason", but more commonly cited as "son of the Carpenter." The corresponding English name is Wright. It is common in Ulster and the highlands of Scotland, found in Ireland mostly in counties Donegal, Londonderry, Tyrone and Sligo.
O'Connor is a surname. Notable people with the surname include:
Rogers is an English patronymic surname deriving from the given name of Roger commonly used by the Normans and meaning "son of Roger". Variants include Rodgers.
Curry is a common surname used in Ireland, Scotland and England. Currey is a less common variant. In England and Scotland, is it thought to derive from local place names and, in Scotland, also possibly from MacMhuirrich.
Conroy is an Irish surname.
Cavanagh or Cavanaugh is a surname of Irish origin, a variation of the Irish family surname Caomhánach.
MacDonnell, Macdonnell, or McDonnell is a surname of Irish and Scottish origin. It is an anglicized form of the Gaelic patronymic Mac Dhòmhnaill, meaning "son of Dòmhnall". The Gaelic personal name Dòmhnall is a Gaelicised form of the name Donald, which is composed of the elements domno, meaning "world", and val, meaning "might" or "rule". The name is considered a variation of MacDonald.
McManus is an Irish surname. It is derived from the Irish Gaelic "Mac Mághnais", in modern Irish "McMaghnuis" which means "Son of Magnus". Its earlier origin is from the Latin "magnus", meaning "great". The Normans used it to honour Charlemagne (742–814), as Carolus Magnus. Variant spellings of the name include MacManus, Manus and MacManners. The English form, Moyne, is also found in Ulster. In Scotland it is a sept of Clan Colquhoun.
Barry is both a given name and an Irish and West African surname. The given name can be an Anglicised form of some Irish personal names or shortened form of Barrington or Finbarr, while the surname has numerous etymological origins, and is derived from both place names and personal names.
Ryan is a common surname of Irish origin, as well as being a common given name in the English-speaking world.
Burke is a Norman-Irish surname, deriving from the ancient Anglo-Norman and Hiberno-Norman noble dynasty, the House of Burgh. In Ireland, the descendants of William de Burgh had the surname de Burgh, which was gaelicised in Irish as de Búrca and over the centuries became Búrc, then Burke, and Bourke.
Fitzsimons is a surname of Norman origin common in both Ireland and England. The name is a variant of "Sigmundsson", meaning son of Sigmund. The Gaelicisation of this surname is Mac Síomóin or Mac an Ridire.
Fletcher is an Anglo-Norman surname of French, English, Scottish and Irish origin. The name is a regional and an occupational name for an arrowsmith, derived from the Old French flecher. The English word was borrowed into the Goidelic languages, leading to the development of the Scottish name "Mac an Fhleisteir", "the arrowsmith's son".
The surname McDonagh, also spelled MacDonagh is from the Irish language Mac Dhonnchadha, and is now one of the rarer surnames of Ireland.
Sheridan is an Irish surname. It is derived from the Irish Gaelic Ó Sirideáin 'descendant of Sirideáin', a given name meaning 'to seek'. Originating in County Longford, the Sheridans were erenaghs of Granard, but in the County Cavan served the O'Reillys.
McKenna is an Irish surname. It derives from the Gaelic name Cináed, meaning, “born of fire.” It is the anglicized form of the Gaelic Mac Cionaodha meaning "son of Cionnaith", or of the Scottish surname, from Galloway, "MacCionaodha".
The Maguire family is an Irish clan based in County Fermanagh. The name derives from the Gaelic Mac Uidhir, which is "son of Odhar" meaning "dun", "dark one". According to legend, this relates to the eleventh descendant of Colla da Chrich, great-grandson of Cormac mac Airt, who was monarch of Ireland about the middle of the third century. From the 13th to the 17th centuries, the Maguire family were kings of Fermanagh.
