OCONNOR Surname Maps of Ireland

Where in Ireland does the family OCONNOR come from? Is OCONNOR a common surname in Ireland? The maps on this page are based on the 1901 and 1911 census of Ireland, available here: Census of Ireland.

OCONNOR in 1901

There were 14,627 with this surname in Ireland in 1901. The surname is ranked 23rd in Ireland. MURPHY is ranked 1st since it is the most common Irish surname.

Religion: Catholic: 14,409 (98.51%), Anglican: 144 (0.98%), Other / Not Given: 54 (0.37%), Presbyterian: 10 (0.07%), Methodist: 6 (0.04%), Protestant: 3 (0.02%), Baptist: 1 (0.01%)

OCONNOR Surname Map in Ireland in 1901

OCONNOR in 1911

There were 16,911 with this surname in Ireland in 1911. The surname is ranked 17th in Ireland. MURPHY is ranked 1st since it is the most common Irish surname.

OCONNOR Surname Map in Ireland in 1911

Dúchas Surname Index for OCONNOR

The Dúchas Surname Index is a set of surname associations compiled by the Irish Folklore Commission. Below is a list of these associations for the surname OCONNOR. Learn more at Dúchas Surname Index.

OCONNOR in 1901 (Farmer)

Map is based on households which had at least one member who had an occupation containing "Farm" or "Agri".

OCONNOR Farmer Surname Map in 1901

OCONNOR in 1901 (Catholic)

Map shows the percentage of people with the surname OCONNOR who are Catholic in each locality

OCONNOR Catholic Surname Map in 1901

OCONNOR in 1901 (Anglican)

Map shows the percentage of people with the surname OCONNOR who are Anglican in each locality

OCONNOR Anglican Surname Map in 1901

OCONNOR in 1901 (Presbyterian)

Map shows the percentage of people with the surname OCONNOR who are Presbyterian in each locality

OCONNOR Presbyterian Surname Map in 1901

OCONNOR in Scotland

The OCONNOR Surname in Scotland

Patterns associated with the OCONNOR surname

List of consecutive consonant patterns associated with this surname:

When producing these maps, surnames are converted to uppercase. "MC" and "M'" are replaced with "MAC", and non-alphabetic characters (hyphens, spaces, apostrophes, accents) are removed. For example, Mac Vey and McVey appear together as MACVEY. O'Neill, Oneill, ONeill and Ó Néill appear together as ONEILL, and D'Arcy and Darcy appear as DARCY.

While every effort has been made to ensure accuracy, no responsibility is taken for errors in the census data. The census is available online for verification.