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Origins of the Oneil surname

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About the Oneils

We have a total number of 88008 records for people with the last name Oneil.

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I’ve managed to trace back to the mid-1500s! I can’t believe it! Utterly engrossing and I have uncovered some quite moving and heartbreaking stories attached to various ancestors. You don’t need any qualifications to start - just time patience, and some information.

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Delve deeper into the Oneil family's history

Where do most Oneils live?

In 1921, most Oneils lived in London.

Census records trace your ancestors through each generation, so you can follow where your relatives lived through each decade.

Interesting facts about Oneils

How common is your surname?

You have a rare surname! It's not in the top 1000 UK surnames!

We have 33,300 records for the Oneil surname. The oldest one dates back to 1826.

Who were Oneils most likely to marry?



O Neils

Our Marriage record sets tell us which families married Oneils.

What are the most common Oneil first names?

  • John
  • James
  • Mary
  • Margaret

Our birth record sets tell us the names of Oneil family members

Common jobs for Oneils

Men and women often performed different types of jobs, so these are displayed by gender to maintain their historical accuracy.

Common Female occupations for Oneils in 1921
Domestic Servant


Cotton Weaver




Mill Worker




Common Male occupations for Oneils in 1921
Coal Miner


General Labourer


Dock Labourer






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Census records provide incredible detail on names, ages, marital statuses, occupations and more.

We found over 100,000 family trees with the Oneil surname

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