O'Niell History, Family Crest & Coats of Arms
- Origins Available:
Irish names tend to vary widely in their spelling and overall form. The original Gaelic form of the name O'Niell is Ó Néill, which means descendant of Niall, a personal name of Irish origin, thought to mean "champion." 
"Of the very great antiquity of this distinguished name and family there can be no doubt." 
Early Origins of the O'Niell family
The surname O'Niell 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 O'Niell family
This web page shows only a small excerpt of our O'Niell research. Another 108 words (8 lines of text) covering the years 1480, 1559, 1530, 1567, 1550, 1616, 1612, 1664, 1694, 1689 and 1689 are included under the topic Early O'Niell History in all our PDF Extended History products and printed products wherever possible.
O'Niell Spelling Variations
Many spelling variations of the surname O'Niell can be found in the archives. One reason for these variations is that ancient scribes and church officials recorded names as they were pronounced, often resulting in a single person being recorded under several different spellings. The different spellings that were found include O'Neill, Neal, Neale, Neales, Neil, Nihill, Niell, O'Nail, O'Neil, O'Niel and many more.
Early Notables of the O'Niell family (pre 1700)
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 O'Niell Notables in all our PDF Extended History products and printed products wherever possible.
| O'Niell migration to Australia ||+|
Emigration to Australia
followed the First Fleets
of convicts, tradespeople and early settlers. Early immigrants include:
O'Niell Settlers in Australia in the 19th Century
- Bridget O'Niell, aged 22, a farm servant, who arrived in South Australia in 1855 aboard the ship "Flora" 
- MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)
- Lower, Mark Anthony, Patronymica Britannica, A Dictionary of Family Names of the United Kingdom. London: John Russel Smith, 1860. Print.
- South Australian Register Monday 9th April 1855. (Retrieved 2010, November 5) Flora 1855. Retrieved http://www.theshipslist.com/ships/australia/flora1855.shtml