| Language(s) | Old Irish (Anglicized) |
|---|---|
| Origin | |
| Meaning | Vigilant or watchful |
| Region of origin | Ireland |
| Other names | |
| Variant form(s) | Caissie O'Casey O'Cathasaigh MacCasey O'Casaigh |
Casey is a common variation of the Irish Gaelic Cathasaigh/Cathaiseach, meaning vigilant or watchful. At least six different septs used this name, primarily in the counties of Cork and Dublin.
People with the surname Casey include:
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.
Tierney is an Irish surname, and a female given name.
Brady is a surname derived from the Irish surname Ó Brádaigh or Mac Brádaigh, meaning "spirited; broad".
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. Variants include Delaney, Delany and Dulaney.
Costello is a surname of Irish origin, which has been used as a stage name by Italians and others.
Clancy is an Irish name coming from the Gaelic Mac Fhlannchaidh/Mac Fhlannchadha, meaning "Son of the red/ruddy warrior", or as a hypocorism for Clarence. The surname originated from two different families, one in Thomond and one in the present day County Leitrim.
Boyd is an ancient Scottish surname.
The surname Collins has a variety of likely origins in Britain and Ireland:
Kennedy, with variant forms O'Kennedy and Kennedie, is a surname of Irish origin that has also been used as a given name.
Patrick Murphy may refer to:
O'Malley is an Irish surname. According to historian C. Thomas Cairney, the O'Malleys were the chiefly family of the Partraige who were a tribe of the Erainn, the second wave of Celts to settle in Ireland between about 500 and 100 BC.
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".
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.
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.
Logan is a surname.
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.