# O'Neill

> English word · Proper noun · IPA /əʊˈniːl/ · frequency rank #11,572

## Definitions
1. A surname from Irish.
2. A city, the county seat of Holt County, Nebraska, United States.

## Etymology
Anglicisation of an Irish surname meaning "descendant of Niall".

## Easily confused with
- **O'Reilly** (https://plainspell.com/en/vs/o-neill-vs-o-reilly)
- **O'Neal** (https://plainspell.com/en/vs/o-neal-vs-o-neill)
- **O'Neil** (https://plainspell.com/en/vs/o-neil-vs-o-neill)

## Common misspellings (6)
`'oneill`, `o'enill`, `o'nelil`, `o'niell`, `o'nneill`, `on'eill`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/o-neill