Oneil
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 Oneil
O'Neil is an anglicized form of the Irish surname Ó Néill, derived from the Irish "Ó" (descendant of) and "Néill," likely meaning "champion" or "cloud" from Old Irish roots.
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Etymology
O'Neil is an anglicized form of the Irish surname Ó Néill, derived from the Irish "Ó" (descendant of) and "Néill," likely meaning "champion" or "cloud" from Old Irish roots. The name has linguistic origins in Gaelic Ireland and is connected to the prominent Ulster clan that ruled large portions of northern Ireland.
The surname is primarily used in Irish culture and among Irish diaspora communities, particularly in English-speaking countries; it has strong historical significance as the O'Neill dynasty was one of the most powerful Gaelic noble families in medieval and early modern Ireland, with notable figures including Hugh O'Neill, the Earl of Tyrone who resisted English rule in the late 16th century.
Oneil currently ranks #10,405 in the United States as a boy's name. It reached its peak popularity around 1924.
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Sibling name ideas
Irish names that sit beautifully beside OneilSimilar names you might like
Names starting with OMore names starting with O
- Olivette
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- Obadiah
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- Obaloluwa
- Oden
- Ohemaa
- Ocie
- Olanna
- Olsen
- Oberon
- Odie
- Odelia
- Oakland
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