Oneill first name popularity, history and meaning

Find out how popular the first name Oneill has been for the last 36 years (from 1982 to 2017) and learn more about the meaning and history.

Meaning of Oneill

A Gaelic given name meaning "descendant of Niall" or "champion".

Popularity of Oneill by gender

Based on the last 36 years of data, Oneill is exclusively a male name.

For the most recent data in 2017, there were 5 male babies and 0 female babies born with the name Oneill.

Year Male Count Female Count
2017 5 0
2016 6 0
2013 5 0
2010 8 0
2000 6 0
1990 5 0
1989 5 0
1988 6 0
1986 5 0
1985 5 0
1982 5 0

The history of the first name Oneill

The given name Oneill has its origins in the Irish Gaelic language and culture. It is derived from the Old Irish words "Ua Néill" or "Ui Neill," which translate to "descendant of Niall" or "grandson of Niall." This name can be traced back to the semi-legendary High King of Ireland, Niall Noígiallach, who ruled in the late 4th and early 5th centuries AD.

The name Niall itself is believed to have been derived from the Old Irish word "niadh," meaning "champion" or "warrior." As such, the name Oneill has connotations of strength, bravery, and nobility associated with its origins.

The first recorded instances of the name Oneill can be found in ancient Irish genealogical records and annals, which document the lineage of the Uí Néill dynasties that dominated much of Ireland from the 5th to the 12th centuries. These dynasties, which included the Northern and Southern Uí Néill branches, were among the most powerful and influential ruling families in medieval Irish history.

Throughout history, several notable individuals have borne the first name Oneill. One of the earliest recorded examples is Oneill Ceanfhota, who was the King of Cenél nEógain (a branch of the Northern Uí Néill) in the late 6th century AD. Another prominent figure was Oneill Frossach, who ruled as the King of Ailech (the capital of the Northern Uí Néill) in the late 8th century.

In more recent times, Oneill Browne (1888-1923) was an Irish revolutionary and member of the Irish Republican Army during the Irish War of Independence. Additionally, Oneill Cronin (1928-2011) was an acclaimed Irish actor known for his performances in films such as "The Seventh Seal" and "Becket."

Other notable individuals with the first name Oneill include Oneill Latimer (1933-1992), an American lawyer and politician who served as the Governor of West Virginia, and Oneill Sanford (1963-present), an American singer and songwriter best known for his work with the band Hootie & the Blowfish.

Data source

The first name data used on this page comes from the Social Security Administration (SSA). They've been collecting data on baby names since 1880.

The history and meaning of the name Oneill was researched and written by our team of onomatology and genealogy experts.

If you have a correction or suggestion to improve the history of Oneill, please contact us.

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"Oneill first name popularity, history and meaning". NameCensus.com. Accessed on May 1, 2025. http://namecensus.com/first-names/oneill-meaning-and-history/.

"Oneill first name popularity, history and meaning". NameCensus.com, http://namecensus.com/first-names/oneill-meaning-and-history/. Accessed 1 May, 2025

Oneill first name popularity, history and meaning. NameCensus.com. Retrieved from http://namecensus.com/first-names/oneill-meaning-and-history/.

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