Oneil History, Family Crest & Coats of Arms 

Origins Available: 
  Ireland 


Irish names tend to vary widely in their spelling and overall form. The original Gaelic form of the name Oneil is Ó Néill, which means descendant of Niall, a personal name of Irish origin, thought to mean "champion." 1

"Of the very great antiquity of this distinguished name and family there can be no doubt." 2

Early Origins of the Oneil family

The surname Oneil was first found in County Tyrone (Irish: Tír Eoghain), the ancient territory of the O'Neills, now in the Province of Ulster, central Northern Ireland, and County Clare where O'Neill was chief of Clan Dalvy and of Tradree, a district in the barony of Inchiquinn. In the 10th century, a branch of this family went to Limerick to assist in the expulsion of the Danes.

After one victorious occasion they wore green boughs in their helmets and on their horses' heads signifying their victory.

Early History of the Oneil family

This web page shows only a small excerpt of our Oneil research. Another 108 words (8 lines of text) covering the years 1480, 1530, 1550, 1559, 1567, 1612, 1616, 1664, 1689 and 1694 are included under the topic Early Oneil History in all our PDF Extended History products and printed products wherever possible.

Oneil Spelling Variations

People who were accounted for by scribes and church officials often had their name recorded many different ways because pronunciation was the only guide those scribes and church officials had to go by. This resulted in the problem of one person's name being recorded under several different variations, creating the illusion of more than one person. Among the many spelling variations of the surname Oneil that are preserved in archival documents are O'Neill, Neal, Neale, Neales, Neil, Nihill, Niell, O'Nail, O'Neil, O'Niel and many more.

Early Notables of the Oneil family

Notable amongst the family name at this time was Sir Niall O'Neill who distinguished himself at the Battle of the Boyne; Conn O'Neill, 1st Earl of Tyrone (c.1480-1559) King of Tir Eogain; Shane O'Neill (c.1530-1567), Irish king of the O'Neill dynasty of Ulster; Hugh O'Neill (c. 1550-1616), Earl of Tyrone, also known as the Great Earl...
Another 56 words (4 lines of text) are included under the topic Early Oneil Notables in all our PDF Extended History products and printed products wherever possible.

Oneil Ranking

In the United States, the name Oneil is the 978th most popular surname with an estimated 29,844 people with that name. 3


Oneil migration to the United States +

A great mass of Ireland's native population left the island in the 19th century, seeking relief from various forms of social, religious, and economic discrimination. This Irish exodus was primarily to North America. If the migrants survived the long ocean journey, many unfortunately would find more discrimination in the colonies of British North America and the fledgling United States of America. These newly arrived Irish were, however, wanted as a cheap source of labor for the many large agricultural and industrial projects that were essential to the development of what would become two of the wealthiest nations in the western world. Early immigration and passenger lists indicate many people bearing the Oneil name:

Oneil Settlers in United States in the 19th Century

Oneil migration to Canada +

Some of the first settlers of this family name were:

Oneil Settlers in Canada in the 19th Century

Oneil migration to Australia +

Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:

Oneil Settlers in Australia in the 19th Century

Oneil migration to New Zealand +

Emigration to New Zealand followed in the footsteps of the European explorers, such as Captain Cook (1769-70): first came sealers, whalers, missionaries, and traders. By 1838, the British New Zealand Company had begun buying land from the Maori tribes, and selling it to settlers, and, after the Treaty of Waitangi in 1840, many British families set out on the arduous six month journey from Britain to Aotearoa to start a new life. Early immigrants include:

Oneil Settlers in New Zealand in the 19th Century

Contemporary Notables of the name Oneil (post 1700) +
Fastest Delivery Possible

Digital Products on Checkout, all other products filled in 1 business day

Money Back Guarantee

Yes, all products 100% Guraranteed

BBB A+ Rating

The Best Rating possible

Secure Online Payment

Entire site uses SSL / Secure Certificate