Lower, Mark A (1860) Patronymica Britannica: a dictionary of the family names of the United Kingdom. London: J.R. Smith. Public Domain.
OCONNOR
There are approximately 11,343 people named Oconnor in the UK. That makes it the 924th most common surname overall. Out of every million people in the UK, approximately 180 are named Oconnor.
Region of origin
British Isles
Country of origin
Ireland
Language of origin
Gaelic
Religion of origin
Christian
Classification
Celtic
From name of parent
Related and similar surnames
OcconnorO'Connor
Occonor
O'Connnor
O'Connorr
O'Connors
O'Conor
O''connor
O'Cconnor
Occonner
O''conor
O'Conorr
O'Cconor
Occonors
O'Conors
O'Connar
O'Connir
O'Conner
Occoner
O'Konor
The Oconnor surname in historical dictionaries
Patronymica Britannica (1860)
O'CONNOR. The O'Connors of Connaught spring from Conor or Concovar, who died in 971. O'Donovan. The family were subdivided at an early period; and the head of one branch assumed the epithet of the O'Connor Roe, or the " Iled-haired," while the other was known as the O'Connor Bon, or the " Brown-haired."