Surnames that begin with the letter 'O'

Explore a list of 2,781 surnames starting with the letter 'O'

Odonahue
The surname Odonahue is of Irish origin and is derived from the Gaelic name "Ó Donnchadha," meaning "descendant of Donnchadh." Donnchadh is a personal name derived from the elements "donn," meaning "b...
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Odonal
The surname Odonal is of Irish origin and is derived from the Gaelic name "Ó Donnghaile," meaning "descendant of Donnghal." The personal name Donnghal is composed of the elements "donn," meaning "brow...
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Odonald
The surname Odonald is of Irish origin and is derived from the Gaelic name "Ó Domhnaill," meaning "descendant of Domhnall." Domhnall is a Gaelic personal name composed of the elements "domhan," meanin...
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Odonell
The surname O'Donell is of Irish origin and is derived from the Gaelic name "Ó Domhnaill," meaning "descendant of Domhnall." Domhnall is a Gaelic personal name composed of the elements "domhan," meani...
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Odonley
The surname Odonley is of Irish origin and is derived from the Gaelic name Ó Donnghaile, meaning "descendant of Donnghal." Donnghal is a personal name derived from the elements "donn," meaning "brown,...
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Odonnal
The surname Odonnal is of Irish origin and is derived from the Gaelic name "Ó Donnghaile," meaning "descendant of Donnghal." The name Donnghal is composed of the elements "donn," meaning "brown," and ...
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Odonnel
The surname O'Donnel is of Irish origin and is derived from the Gaelic name "Ó Domhnaill," meaning "descendant of Domhnall." Domhnall is a Gaelic personal name composed of the elements "domhan," meani...
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Odonnell
The surname O'Donnell is of Irish origin and is derived from the Gaelic name "Ó Domhnaill," meaning "descendant of Domhnall." Domhnall is a Gaelic personal name composed of the elements "domhan," mean...
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Odonoghue
The surname O'Donoghue is of Irish origin and is derived from the Gaelic name "Ó Donnchadha," meaning "descendant of Donnchadh." Donnchadh is a personal name composed of the elements "donn," meaning "...
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Odonohoe
The surname Odonohoe is of Irish origin and is derived from the Gaelic name "Ó Donnchadha," meaning "descendant of Donnchadh." Donnchadh is a personal name derived from the elements "donn," meaning "b...
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Surnames that begin with the letter 'O'

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