Oneill
Irish · Boy · 2 syllables
Popularity & facts
Relative popularity index, 2010–2025Popularity over time
Popularity indexHistorical popularity from 1880–2025 · US Social Security Administration data
About the name Oneill
O'Neill is an Anglicized form of the Irish surname Ó Néill, derived from the Irish "Ó" (descendant of) and "Néill," possibly from the Old Irish word meaning "champion" or "cloud." The name originated in Ulster, Northern Ireland, with the O'Neill clan being one of the most powerful Gaelic Irish families, particularly prominent from the medieval period through the early modern era.
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Etymology
O'Neill is an Anglicized form of the Irish surname Ó Néill, derived from the Irish "Ó" (descendant of) and "Néill," possibly from the Old Irish word meaning "champion" or "cloud." The name originated in Ulster, Northern Ireland, with the O'Neill clan being one of the most powerful Gaelic Irish families, particularly prominent from the medieval period through the early modern era.
Oneill currently ranks #13,726 in the United States as a boy's name. It reached its peak popularity around 2010.
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Sibling name ideas
Irish names that sit beautifully beside OneillSimilar names you might like
Names starting with OMore names starting with O
- Ollis
- Ollen
- Olijah
- Ohm
- Ocyrus
- Ocyris
- Olasunkanmi
- Obieze
- Ohlen
- Ocelotl
- Octaviano
- Obsa
- Obdulio
- Ohitika
- Oladeji
- Oen
- Oconner
- Obeth
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