OBRIEN Surname Maps of Ireland

Where in Ireland does the family OBRIEN come from? Is OBRIEN 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.

Meanings of the Surname OBRIEN

According to Thomas G. Gentry in his 1892 book Family Names, the Irish section states: O, descendant; Brien, corruption of Britain. Grandson of a Briton. O'Bryan, of similar signification.

OBRIEN in 1901

There were 22,762 with this surname in Ireland in 1901. The surname is ranked 7th in Ireland. MURPHY is ranked 1st since it is the most common Irish surname.

Religion: Catholic: 22,265 (97.82%), Anglican: 347 (1.52%), Other / Not Given: 90 (0.40%), Presbyterian: 39 (0.17%), Quaker: 10 (0.04%), Methodist: 6 (0.03%), Christian: 2 (0.01%), Protestant: 2 (0.01%), Plymouth Brethren: 1 (0.00%)

OBRIEN Surname Map in Ireland in 1901

OBRIEN in 1911

There were 24,536 with this surname in Ireland in 1911. The surname is ranked 7th in Ireland. MURPHY is ranked 1st since it is the most common Irish surname.

OBRIEN Surname Map in Ireland in 1911

Woulfe Surname Index for OBRIEN

The Rev. Patrick Woulfe provided lists of surname associations for Irish surnames in his book Irish Names and Surnames. Below is a list of these associations for the surname OBRIEN.

Dúchas Surname Index for OBRIEN

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 OBRIEN. Learn more at Dúchas Surname Index.

OBRIEN in 1901 (Farmer)

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

OBRIEN Farmer Surname Map in 1901

OBRIEN in 1901 (Catholic)

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

OBRIEN Catholic Surname Map in 1901

OBRIEN in 1901 (Anglican)

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

OBRIEN Anglican Surname Map in 1901

OBRIEN in 1901 (Presbyterian)

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

OBRIEN Presbyterian Surname Map in 1901

OBRIEN in Scotland

The OBRIEN Surname in Scotland

Patterns associated with the OBRIEN 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.