People With Last Name Oneill
The surname 'oneill' is of Irish origin, derived from the Gaelic name "Ó Néill," meaning 'descendant of Niall.' Niall is a popular Irish given name, and the O'Neill clan is one of the oldest and most distinguished in Ireland, with a rich history dating back to ancient times. The name is commonly associated with the province of Ulster, particularly in counties Tyrone and Derry, where the O'Neill dynasty once held significant power and influence.
Among the more commonly found last names, Oneill holds the #689 spot in the United States, appearing 50028 times in Census data — or 17 per 100,000 people.
Our database contains over 11259 people with the last name Oneill. This surname is most commonly found in Florida, New York, California. We have over 13 unique first names combined with the last name Oneill in our records. The most frequent first names associated with this surname are James, Michael, John.
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