O'Reilly is a common Irish surname. The O'Reillys were historically the kings of East Bréifne in what is today County Cavan. The clan were part of the Connachta's Uí Briúin Bréifne kindred and were closely related to the Ó Ruairc (O'Rourkes) of West Bréifne. O'Reilly is ranked tenth in the top twenty list of most common Irish surnames. It is also the patronymic form of the Irish name Reilly. The name is commonly found throughout Ireland, with the greatest concentration of the surname found in County Cavan followed by Longford, Meath, Westmeath, Fermanagh and Monaghan, and the Province of Leinster.
Bradley is an English surname derived from a place name meaning "broad wood" or "broad meadow" in Old English.
Naughton is an Irish Gaelic surname derived from the name Ó Neachtain meaning 'descendant of Nechtan'. A Sept of the Dal gCais of the same stock as Quinn and Hartigan where located in Inchiquin Barony, County Clare.
Delaney is an Irish surname derived from the Gaelic Ó Dubhshláine, Dubh meaning black and Sláine for the River Sláine (Slaney). DeLaney is also of Norman origin. There is a branch of Dulaneys in the United States who trace back to a Thomas Delany. Thomas's son, Daniel, claimed to have been descended from Dr. Gideon Delaune, a Huguenot physician and theologian and founder of the Apothecaries' Hall. Hence, there are multiple discussions among genealogical circles as to the origin of Delaney since it can be anglicised Gaelic or anglicised French.
Dunne is an Irish surname, derived from the Irish Ó Duinn and Ó Doinn, meaning "dark" or "brown." The name Dunne in Ireland is derived from the Ó Duinn and the Ó Doinn Gaelic septs who were based in County Laois, County Meath and County Wicklow. These septs in turn are descendants of the O'Regan noble family. It is in these counties that the majority of descendants can still be found. Hundreds of years ago, the Gaelic name used by the Dunn family in Ireland was Ó Duinn or Ó Doinn. Both Gaelic names are derived from the Gaelic word donn, which means "brown". Ó Doinn is the genitive case of donn. First found in county Meath, where they held a family seat from very ancient times. Variations: Dunn, Dunne, Dun, Duen, O'Dunne, O'Doyne, Doine, Doin, O'Dunn.
The surname McArdle or MacArdle was the twelfth most numerous in its homeland of County Monaghan in 1970. The surname in Irish is MacArdghail, from ardghal, meaning 'high valour' or from the Irish "ardghail" meaning "tall foreigner" with roots "ard" meaning "tall" and "gail" meaning "foreigner", indicative of their original ancestor being a Viking or from Viking stock. The surname is also common in County Armagh and County Louth.
Hayes is an English language surname. In the United States Census, 1990, Hayes was the 100th most common surname recorded. The oldest record of the surname dates to 1197 in the Eynsham Cartulary of Oxfordshire, where it appears in the form Heise. There are nineteen coats of arms assumed by or granted to individuals with this or a similar surname. Though primarily a surname, "Hayes" sometimes appears as a given name in census records.
Garvey and O'Garvey are Irish surnames, derived from the Gaelic Ó Gairbhith, also spelt Ó Gairbheith, meaning "descendant of Gairbhith". Gairbhith itself means "rough peace".
Hynes is a surname, many examples of which originate as the anglicisation the Irish name Ó hEidhin.
O'Devlin is the surname of a Gaelic Irish family of the Uí Néill who were chiefs in the far northeastern of the present-day County of Tyrone, bordering on Lough Neagh and the Ballinderry River. The O'Develins claimed a common descent from Develin. Develin was a scion of that branch of the clan Owen known as the Sons of Erca because of their descent from Muirchertach Mac Erca, grandson of Owen.
Duffy is a surname of Irish origin that comes from the original Irish name Ó Dubhthaigh, meaning descendant of Dubthach. Dubthach was an Old Irish first name meaning "black".
Lucey is an Irish, British, American and Canadian surname. Lucey has two distinct possible origins: of Norman origins derived from Latin personal name Lucius; of Gaelic origins derived from Old Gaelic Ó Luasaigh, anciently Mac Cluasaigh. Alternative spellings are: Lucie, Luci, Luce. Lucey is also a toponomastic name in France.
Rogan is an Irish surname, deriving from the Irish Ó Ruadhagáin, which can be loosely translated to mean "red-haired."
Lavery, also spelled Lowry, Lowrie, Lory, Lavoy and Lowery, is an Irish surname derived from the Gaelic Ó Labhradha, meaning the "descendants of Labhradha".
Mullally or Mulally or Mullaly or Mulaly is a surname of Irish origin thought to have originated from County Galway where it has since been shortened to the form of Lally.
One theory is that Hampson is an Irish surname. The small clan of O’hAmhsaigh (O’Hampsey) had become O'Hamson by 1659, when it is recorded in the census of 1659 as one of the principal Irish surnames in the barony of Keenaght, and as O'Hampson and Hampson it is found in the contemporary Hearth Money Rolls for County Londonderry.
Cullen is an Irish surname.
Donnelly is an Irish surname. It is derived from the Gaelic Ó Donnghaile meaning 'descendant of Donnghal', a given name composed of the elements donn and gal ('valour'). O'Donnelly was historically of the Northern Uí Néill's Cenél nEoghain, descended from Donnghal, the great grandson of Domhnall, King of Ailech.
Curran is an Irish surname.
Downey is an Irish surname that means in English “belonging to a fort”. The name is found from ancient times in areas of Ireland's modern County Galway, southwest Cork, Kerry, Limerick, Ulster and Leinster and is believed to be the surname of three distinct families. In Ulster, Downey were the chiefs of the Ulaid petty-kingdom of Cinel Amhalgaidh, now known in the Anglicised form as Clanawley in County Down, Northern Ireland.
