Everything you need to know about the Irish surname O'Neill 

Editor's note: Throughout June, we'll be celebrating the O'Neill family on IrishCentral and the many great people who share the Irish last name. Throughout the month, we'll be looking at some of the most successful O'Neills and the places in Ireland you should visit associated with the surname. 

Find out how you can get involved here.

Happy O'Neill month! Do you have the Irish last name but know absolutely nothing about it? Here's everything you need to know from its meaning to some interesting facts about the Irish family name. 

Read more: Where in the world do the most O’Neills live? Celebrating the global O’Neill family

Irish derivation: Ó Néill.

Name meaning: "Descendant of Niall."

Counties associated with the name: Tyrone, Derry, Donegal, Meath, Dublin, Carlow, Tipperary, and Wicklow.

Coat of arms motto: "The red hand of Ireland."

Read More: This historic Irish hotel has a genealogy butler to help you discover your roots

Interesting Facts about the surname O'Neill:

Thanks in part to the fleeing of Irish lords, many O'Neills can be found in places in Europe like Holland, Spain, and France, as well as the Caribbean.

The O'Neills can trace their family history back to A.D. 360, a rare feat among the families of Europe.

The O'Neills take their name from Niall Glúndub, an early 10th-century High King of Ireland from the Cenél nEógain. Cenél nEógain, descendants of Eógan mac Néill, were a branch of the Uí Néill dynasty who took their name from Niall of the Nine Hostages, a legendary 5th century King of Tara.

Famous people with the last name O'Neill:

  • Sir Niall O'Neill (1658-1690, who distinguished himself at the battle of the Boyne)
  • Arthur O'Neil (1737-1816, a blind harpist of great renown)
  • John O'Neill (1834-1878, a Fenian leader)
  • Eugene O'Neill (1888-1953, the dramatist, was the son of an American actor, himself an Irish immigrant)
  • Ed O'Neill (1946-, an Irish American actor)
  • Congress Thomas 'Tipp' O'Neill (1912-1994, a US Speaker of the House of Representatives and an advocate of the Irish cause)

Read More: How to pinpoint where your ancestors lived in Ireland

Do you know any O'Neills? Let us know in the comments!

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Here are some interesting facts about the Irish last name O'Neill, including its history, family crest, coat of arms, and famous clan members.