Browse Surnames
Browse, filter and discover surnames by letter and origin.
7,352 surnames in our directory
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7,352Ó Conghalaigh is a Gaelic Irish surname, most widely known in its anglicized form Connolly. The name derives from the Irish Ó Conghalaigh, meaning "descendant of Conghalach." Conghalach itself is a personal name derived...
O'Connell is a noble surname of Irish origin, being an Anglicized variant of Connell. It derives from the Irish Ó Conaill, meaning "descendant of Conall." The personal name Conall itself comes from the Old Irish elements...
O’Connor is a prominent Irish surname, representing the anglicisation of the Gaelic Ó Conchobhair, meaning "descendant of Conchobar." The root name Conchobar itself derives from Old Irish elements cú "hound, dog, wolf" (...
Ó Corcráin is an Irish Gaelic surname, originally spelled with a fada (accent) over the 'a'. It is the direct source of the anglicized surname Corcoran. The name means "descendant of Corcrán," where Corcrán is a personal...
Ó Corra is an Irish surname meaning "descendant of Corra", where the given name Corra itself means "spear" in Irish. This Gaelic patronymic surname originates from the ancient Irish naming tradition, where the prefix "Ó"...
Ó Corraidhín is an Irish Gaelic surname, representing the original Gaelic form of the anglicized surname Curran. The name is derived from the personal name Corraidhín, which likely means "little spear"—from Irish corra "...
Ó Cruadhlaoich is an Irish Gaelic surname, the original form of the anglicized surname Crowley 1. The name derives from the Irish patronymic Ó Cruadhlaoich, meaning “descendant of Cruadhlaoch”. The given name Cruadhlaoch...
Ó Cuaig is an Irish Gaelic surname, the original form of the anglicized Quigg. It means "descendant of Cuaig," with Cuaig being a personal name of uncertain etymology. The surname is historically associated with County M...
Ó Cuana is an Irish Gaelic surname, equivalent to the Anglicized Cooney. The name originally meant "descendant of Cuana", where Cuana is a personal name derived from the Gaelic word for "handsome, elegant" or "comely". I...
Ó Cuidighthigh is an Irish patronymic surname meaning "descendant of Cuidightheach". The root name Cuidightheach is an Irish byname derived from the word cuidigh, meaning "help" or "helpful". This name traces back to med...
Ó Cuilinn is a Gaelic Irish surname meaning “descendant of Cuileann”, where Cuileann is a nickname meaning “holly”. The name reflects Ireland’s strong connection between personal nicknames based on nature and later hered...
Ó Cuinn is the Irish Gaelic form of the surname Quinn, a name that has become common in both Ireland and the diaspora. Like many Irish surnames, Ó Cuinn means "descendant of Conn," referring to a male ancestor named Conn...
Ó Cuinneagáin is an Irish surname that represents the original Gaelic form of the anglicized name Cunningham. It is derived from the Irish Gaelic Ó Cuinneagáin, meaning 'descendant of Cuinneagán'. The personal name Cuinn...
Etymology and OriginsÓ Cuirc is an Irish Gaelic surname, originating as a patronymic meaning "descendant of Corc." The personal name Corc derives from the Old Irish word for "heart," reflecting a tradition of naming afte...
Ó Dálaigh is an Irish Gaelic surname, the original form of the Anglicized surname Daly and its variant Daley. The name is derived from the patronymic prefix Ó meaning "descendant of" and the personal name Dálach, making...
Ó Damháin is an Irish surname meaning "descendant of Damhán". Damhán itself derives from Old Irish Damán, meaning "calf, fawn," which comes from the Celtic root dam, meaning "ox, deer," combined with a diminutive suffix....
Ó Deasmhumhnaigh is a traditional Irish Gaelic surname, anglicized as Desmond. The name derives from the region of Desmond in southern Ireland, historically known as "south Munster" (from Irish Deasmhumhain). The surname...
EtymologyÓ Deoradháin is the Irish Gaelic form of the surname Doran. It belongs to the widespread Gaelic tradition of surnames beginning with Ó, meaning "descendant of." The name originates from the byname Deoradhán, whi...
Ó Díomasaigh is the original Irish Gaelic form of the surname Dempsey. Deriving from the Gaelic prefix Ó meaning "descendant of" and the personal name Díomasach, the surname literally translates to "descendant of Díomasa...
Ó Dochartaigh is the original Irish Gaelic form of the surname Doherty. It is a patronymic name meaning "descendant of Dochartach", with the Gaelic mac or ó (abbreviated from ua) indicating lineage. The personal name Doc...
Ó Doibhilin is an Irish Gaelic surname, a patronymic form meaning "descendant of Doibhilin." The name originated in Ireland and is found in historical records primarily in the northern counties, particularly Donegal and...
Ó Doirnáin is an Irish Gaelic surname that serves as the original Irish form of the anglicized surname Durnin. The name originates from the Gaelic Ó Doirnáin, meaning "descendant of Doirnín," where Doirnín is a personal...
Ó Domhnaill is the original Irish Gaelic form of the surname O'Donnell, meaning "descendant of Domhnall." The name Domhnall itself is the Irish form of Donald, derived from the Old Irish elements domun "world" and fal "r...
Ó Donnchadha is an Irish Gaelic surname, derived from the personal name Donnchadh. It originates as a patronymic, meaning 'descendant of Donnchadh'. The name is ultimately rooted in the Gaelic elements donn 'brown' and c...
Ó Donndubháin is an Irish Gaelic surname that serves as the original form of the Anglicized surname Donovan. It belongs to the class of Irish patronymic surnames prefixed with Ó, meaning 'descendant of'. The name is hist...
O'Donnell is an Irish surname, derived from the Gaelic Ó Domhnaill, meaning "descendant of Domhnall," which is the Irish form of Donald. The name Donald itself comes from the Scottish Gaelic Dòmhnall, composed of the Old...
Ó Donnghaile is the original Irish Gaelic form of the anglicized surname Donnelly. It is a patronymic name derived from the Old Irish Ua Domhnaill, meaning "descendant of Donnghal". The personal name Donnghal is composed...
O'Doyle is an Irish surname, a variant of the more common Doyle. Like Doyle, it is an Anglicized form of the Irish patronymic Ó Dubhghaill, meaning “descendant of Dubhghall.” The O'Doyle form arose as a back-formation fr...
Ó Dubháin is an Irish Gaelic surname, the direct source for the anglicized form Duane. The name means “descendant of Dubhán,” where the prefix “Ó” denotes patrilineal descent in Irish naming conventions.Etymology and Ori...
Ó Dubhghaill is an Irish Gaelic surname, the original form of the Anglicized Doyle. It translates as “descendant of Dubhghall,” from the personal name Dubhghall (also appearing in Scottish Gaelic). The name Ó Dubhghaill...
Ó Dubhshláin is an Irish Gaelic surname, the original form of the anglicized Dolan. The name means "descendant of Dubhshláine". The personal name Dubhshláine is derived from Old Irish dub meaning "dark, black" and either...
Ó Dubhshláine is the original Irish Gaelic form of the Anglicized surname Delaney. It means "descendant of Dubhshláine," a personal name derived from Old Irish dub meaning "dark" or "black" combined with either slán mean...
Ó Dubhthaigh is an Irish Gaelic surname, most commonly anglicized as Duffy. It originates from the Irish Ó Dubhthaigh, meaning "descendant of Dubthach." The name Dubthach itself is derived from the Old Irish element dub...
Ó Duibh is an Irish surname meaning "descendant of Dubh," where Dubh is an Irish byname meaning "dark" or "black." It is part of the Gaelic patronymic naming tradition, where Ó indicates "grandson" or "descendant." This...
Oelberg is a German surname that translates to "oil hill" in modern English. The name is derived from Middle High German öl meaning "oil" and berg meaning "mountain, hill". This topographic surname likely originated as a...
Ó Fallamháin is an Irish Gaelic surname that serves as the original form of the English surname Fallon. This patronymic surname, meaning "descendant of Fallamhán," reflects the rich onomastic tradition of ancient Ireland...
Ó Faoláin is an Irish Gaelic surname whose literal meaning is "descendant of Faolán." It is closely related to the anglicized forms Whelan and Phelan, which are common in Ireland and among the Irish diaspora. Origin and...
Ó Fearghail is an Irish Gaelic surname representing the original form of the Anglicized surname Farrell. It is a patronymic surname meaning "descendant of Fearghal", which itself derives from the Old Irish elements fer "...
Offermans is a Dutch surname meaning "offering, donation" in reference to a person who collected money in a church. The name originates from the Middle Dutch offerman, a compound of offer (offering) and man (man). It was...
Ó Fionnagáin is the original Irish Gaelic form of the surname Finnegan. It derives from the Gaelic Ó Fionnagáin, meaning “descendant of Fionnagán,” where Fionnagán is a personal name formed from Fionn (meaning “fair” or...
Ó Fionnáin is an Irish Gaelic surname meaning "descendant of Fionn." It is the original Irish form of later anglicized surnames such as Fannon and Finn. The name is deeply rooted in Irish legend, as Fionn (also spelled F...
Ó Flannagáin is an Irish Gaelic surname that serves as the original form of the Anglicized Flanagan. Derived from the Old Irish element flann meaning "blood red" or "ruddy," combined with a diminutive suffix, the name li...
Ó Flannghaile is the original Irish Gaelic form of the anglicized surname Flannery. It is a patronymic surname, meaning that it derives from an ancestor's given name, formed with the prefix Ó, indicating "grandson" or "d...
Ó Floinn is an Irish surname, historically borne by the descendants of a Norse-Gaelic kindred. It is the original Gaelic form of the better-known anglicized surname Flynn, both derived from the Old Irish personal name or...
Ó Foghladha is the original Irish Gaelic form of the surname Foley. It is an Irish patronymic name, meaning “descendant of Foghlaidh,” derived from a personal byname that denoted “pirate,” “marauder,” or “plunderer.” The...
Ó Frighil is an Irish surname, the Gaelic form of Friel. The name originates from the Irish Gaelic Ó Frighil, meaning "descendant of Fearghal," which itself derives from the Old Irish name Fergal, composed of elements me...
Ó Gallchobhair is the original Irish Gaelic form of the surname Gallagher, deeply rooted in the history of County Donegal, Ireland. Derived from the given name Gallchobhar (from Old Irish gall 'stranger' and cobar 'desir...
Ogawa is a Japanese surname written primarily as 小川, meaning "small river" (from o meaning "small" and kawa meaning "river"). It is one of the most common surnames in Japan, ranked 30th in frequency. Less common varian...
Ognianov is a Bulgarian surname that represents an alternate transcription of the more common Ognyanov. Both forms originate from the given name Ognyan, which itself is derived from the Bulgarian word огнен (ognen) meani...
Ognianova is a Bulgarian surname that represents an alternate transcription of Огнянова (Ognyanova), the feminine equivalent of the masculine surname Ognianov or Ognyanov.Etymology and MeaningThe name is ultimately deriv...
Ognyanov is a Bulgarian surname meaning "son of Ognyan."Etymology and OriginThe root of the surname is the masculine given name Ognyan, which is derived from the Bulgarian word о̀гън (ogan) meaning "fire" or more directl...
Ognyanova is a Bulgarian surname that serves as the feminine form of Ognyanov, which itself means "son of Ognyan." The root name Ognyan derives from the Bulgarian word огнен (ognen), meaning "fiery," and can be traced ba...
Ó Gormáin is an Irish surname with deep roots in Gaelic culture, representing the original form of anglicized versions such as Gorman and O'Gorman. It is derived from the Old Irish patronymic formula Ó meaning "grandson"...
Etymology & OriginsO'Gorman is an Irish surname, a variant of Gorman 2, which itself derives from the Irish Ó Gormáin meaning "descendant of Gormán." The given name Gormán translates to "little blue one"—likely a referen...
Ó Gráda is an Irish Gaelic surname, the anglicized form of which is Grady. The root of both surnames is the byname Gráda, meaning "noble" or "illustrious" in Irish. The prefix Ó indicates "descendant of", so Ó Gráda tran...
Ogtrop is a Dutch toponymic surname that originally referred to a person from the town of Ochtrup in Germany. The name Ochtrup itself is of uncertain origin, possibly deriving from a combination of Old Saxon or Low Germa...
Oh (sometimes also romanized as O) is a common Korean surname, derived from the Chinese surname Wu (吳). According to the 2015 South Korean census, there were 763,281 people with the surname Oh, making it one of the most...
Ó hAllmhuráin is the original Irish Gaelic form of the Anglicized surname Halloran. Derived from the Irish patronymic Ó hAllmhuráin, it means “descendant of Allmhurán,” a given name that translates to “stranger from acro...
O'Hanegan is a variant of the Irish surname O'Hannagain. The name originates from the Gaelic Ó hAnnagáin, meaning 'descendant of Annagán'. The personal name Annagán is a diminutive of Annadh, which translates to 'delay'....
O'Hanigan is an Irish surname, a variant of O'Hannigain, which itself derives from O'Hannagain. The root form, Ó hAnnagáin, means "descendant of Annagán," where Annagán is a diminutive of the personal name Annadh, meanin...