Start My Family Tree Welcome to Geni, home of the world's largest family tree.
There are already 1,457 genealogy profiles with the O'Néill surname on Geni. Join now to find your relatives.

O'Néill Genealogy and O'Néill Family History Information

‹ Back to Surnames Index


view all 1,457


  • Ann Finley (O'Neill) (1683 - 1758)
  • Briuin O'Neill, King of Connaught (480 - 542)
    From Brion was a half-brother of the famous Niall of the Nine Hostages.--------------------B rión (?) (1) M, #284111 Last Edited=20 May 2008 Brión (?) is the son of Eochaid Mugmedón (?). (1) C...
  • Christopher O'Neill
    Christopher O’Neill was born on June 27, 1974, in London, England, where he grew up with his parents, Eva Maria and Paul O’Neill. He has dual citizenship in the United States and the United Kingdom, ...
  • Conn O'Neill, 1st Earl of Tyrone (c.1480 - 1559)
    Conn O'Neill, 1st Earl of Tyrone (Irish: Conn Bacach mac Cuinn Ó Néill) King of Tír Eógain, c. 1480–1559. His byname was Conn the Lame . He was the first of the O'Neills to emerge as leaders of the n...
  • Diarmait I Derg mac Fergus Cerbaill O'Néill, High King of Ireland (c.486 - 565)
    Diarmait I, High King of Ireland (1) M, #150057, d. 565 Last Edited=20 May 2008 Diarmait I, High King of Ireland was the son of Fergus Cerrbél (?). (1) He died in 565. (1) Diarmait I, High Ki...

About the O'Néill surname

This section is a placeholder for information about the O'Néill surname. Surname information is crowd-sourced; the Geni community would be grateful if you helped update this page with information about the O'Néill surname.

Share some things about the O'Néill name.