List of Irish Baby Names Meanings Starting with (O) ×

You have 81 origins to scan 1 million baby names. Find 26 unique names in our collection from Irish origin.
Get modern, unique names list for Irish below:

  • Obharnait
    Meaning: The color of olive Origin: Irish
  • Obrian
    The surname O'Brien is 'O'Briain' in Irish, meaning descendant of Brian (Boru). The name means 'exalted one' or 'eminence'. ... His victory at Clontarf united all of Ireland, nominally at least, under a single leader, though Brian himself was slain.
    Meaning: Surname. Origin: Irish
  • Obrien
    The surname O'Brien is 'O'Briain' in Irish, meaning descendant of Brian (Boru). The name means 'exalted one' or 'eminence'. It is among the ten most frequently found in Ireland and derives from the 10th century King of Ireland, Brian Boru.
    Meaning: Surname. Origin: Irish
  • Odanodan
    Meaning: Of the red earth Origin: Irish
  • Odhran
    Means 'little pale green one', derived from Irish odhra 'pale green' plus diminutive suffix -an. Pronounced: O-rawn. Famous real-life people named Odhrán: | Edit. Saint Odhrán, early Irish saint and companion of Saint Columba.
    Meaning: Pale green Origin: Irish
  • Oengus
    It is an Anglicised form of the Irish and Scottish Gaelic Aonghas, which is composed of Celtic elements meaning "one", and "choice". ... According to historian Alex Woolf, the early Gaelic form of the name, Oengus, was borrowed from the Pictish Onuist, which appears in British as Ungust.
    Meaning: One vigor Origin: Irish
  • Ohnicio
    Meaning: Honor Origin: Irish
  • Oilbhe
    [ syll. oi-(l)(b)he, oil-bhe ] The baby girl name Oilbhe is pronounced as OY-LB- †. The origin of Oilbhe is Latin. Oilbhe is a variant of the name Olivia (English, German, and Italian).
    Meaning: Olive Origin: Irish
  • Oisyn
    Meaning: Small deer Origin: Irish
  • Okeefe
    Recorded in the spellings of O'Keefe and O'Keeffe, this is an ancient Irish surname and is the anglicised version of the Irish O'Caoimh, from the gaelic word caomh, meaning 'kind' or 'gentle'.
    Meaning: Surname Origin: Irish
  • Omat
    Irish Meaning: The name Omat is an Irish baby name. In Irish the meaning of the name Omat is: The color of olive.
    Meaning: The color of olive Origin: Irish
  • Orghlaith
    Meaning: Golden Origin: Irish
  • Orlah
    Órla, Órlaith, Orla or Orlagh (pronounced OR-lah) is a female given name of Irish origin. The root format of the name is Órfhlaith interpretable as "golden princess" as it combines the Gaelic elements ór: gold, and fhlaith literally prince, its full feminine form being banfhlaith.
    Meaning: Golden princess Origin: Irish
  • Orlaith
    MEANING: orlaith means “golden princess.” The name was shared by both a sister and a daughter of the most famous of the high kings, Brian Boru (read the legend). GENDER: Girl | Female. IRISH NAME: Orlaith Orlagh. PRONUNCIATION: or + la”
    Meaning: Golden Origin: Irish
  • Orlaithe
    [ syll. or-lai-(t)he, orl-ai-the ] The baby girl name Orlaithe has its origins in the Celtic language. Orlaithe is a variant transcription of Orla (English and Irish). See also the related category celtic. Orlaithe is an unusual baby girl name. It is listed outside of the top 1000.
    Meaning: Golden Origin: Irish
  • Oshay
    Irish Meaning: The name O'shay is an Irish baby name. In Irish the meaning of the name O'shay is: Surname.
    Meaning: Surname Origin: Irish
  • Oysin
    Meaning: Small deer Origin: Irish
  • O`
    A male's surname generally takes the form Ó/Ua (meaning "descendant") or Mac ("son") followed by the genitive case of a name, as in Ó Dónaill ("descendant of Dónall") or Mac Lochlainn ("son of Lochlann"). ... When anglicised, the name can remain O' or Mac, regardless of gender.
    Meaning: Descendent of. Irish surnames formed by prefacing O. Origin: Irish
  • O`brian
    Irish Surname - O'Brien. The surname O'Brien is 'O'Briain' in Irish, meaning descendant of Brian (Boru). The name means 'exalted one' or 'eminence'. ... His victory at Clontarf united all of Ireland, nominally at least, under a single leader, though Brian himself was slain.
    Meaning: Surname. Origin: Irish
  • O`brien
    The surname O'Brien is 'O'Briain' in Irish, meaning descendant of Brian (Boru). The name means 'exalted one' or 'eminence'. It is among the ten most frequently found in Ireland and derives from the 10th century King of Ireland, Brian Boru.
    Meaning: Surname. Origin: Irish
  • O`keefe
    O'Keeffe (Irish: Ó Caoimh), also O'Keefe, Keef, or Keefe, is the name of an Irish Gaelic clan based most prominently in what is today County Cork, particularly around Fermoy and Duhallow.
    Meaning: Surname Origin: Irish
  • O`shay
    Irish Meaning: The name O'shay is an Irish baby name. In Irish the meaning of the name O'shay is: Surname.
    Meaning: Surname Origin: Irish
  • O`shea
    In modern Irish this surname is usually O'Sé and the anglicised version is O'Shea or Shea. The name is derived from the Gaelic word 'séaghdha' which means hawklike or stately. The O'Sheas were primarily a Kerry sept and their power base was the Iveragh peninsula in County Kerry.
    Meaning: Surname Origin: Irish
  • O~keefe
    O'Keeffe (Irish: Ó Caoimh), also O'Keefe, Keef, or Keefe, is the name of an Irish Gaelic clan based most prominently in what is today County Cork, particularly around Fermoy and Duhallow.
    Meaning: Surname Origin: Irish
  • O~shay
    O'Shay. Buy JPG Image » Irish names tend to vary widely in their spelling and overall form. The original Gaelic form of the name O'Shay is O Seaghdha, which is modified to O Se. The surname is derived from the word seaghdha which means hawk like but has a secondary meaning of stately.
    Meaning: Surname Origin: Irish
  • O~shea
    In modern Irish this surname is usually O'Sé and the anglicised version is O'Shea or Shea. The name is derived from the Gaelic word 'séaghdha' which means hawklike or stately. The O'Sheas were primarily a Kerry sept and their power base was the Iveragh peninsula in County Kerry.
    Meaning: Surname Origin: Irish