Summary

The surname Brennan is of Irish origin and is derived from the Gaelic name Ó Braonáin, meaning 'descendant of Braonán'. It is a common surname in Ireland, particularly in County Mayo and County Kilkenny. The Brennan family has a long history in Ireland, and members of the clan have played significant roles in Irish culture and politics.
There are
49238
Brennans in the USA
Brennan is the
701st
most common last name in the USA

Historical figures and celebrities called Brennan

MaeveBrennan

Maeve Brennan was an Irish short story writer and journalist, known for her work at The New Yorker magazine.

EamonnBrennan

Eamonn Brennan is an Irish basketball player and journalist, currently serving as the ESPN college basketball analyst.

DennisBrennan

Dennis Brennan is an American singer-songwriter known for his bluesy rock style and unique vocal sound.

RobertH.

Robert H. Brennan was an American investor and businessman, known for his involvement in several securities fraud cases.

LornaBrennan

Lorna Brennan is a British actress known for her roles in television series like 'The Bill' and 'Coronation Street.'

JoeBrennan

Joe Brennan is an Irish politician who served as a member of the Irish parliament, known for his work on finance and foreign affairs.

MariaBrennan

Maria Brennan is an Irish singer and songwriter, best known as the lead vocalist of the Irish folk band Clannad.

JamesBrennan

James Brennan is an American entrepreneur and businessman, known for founding the clothing retailer Aeropostale.

CaitlinBrennan

Caitlin Brennan is an American author known for her fantasy novels, including the 'House of the Star' series.

JohnBrennan

John Brennan is an American intelligence official who served as the Director of the Central Intelligence Agency (CIA) from 2013 to 2017.

Brennan Genealogy

OriginsThe surname 'Brennan' is of Irish origin and is derived from the Gaelic name Ó Braonáin, meaning 'descendant of Braonán.' It is commonly associated with the County Kerry in Ireland.
Geographic DistributionThe surname 'Brennan' is most common in Ireland, particularly in the county of Kerry. It is also found in significant numbers in the United States, Canada, and the United Kingdom.
VariationsVariations of the surname 'Brennan' include 'Brannan', 'Brennon', 'Brenan', 'Brenin', 'Brennen', and 'Brennon'.
Migration and ImmigrationThe name 'Brennan' has been carried by Irish immigrants to various countries, particularly during the Great Famine in the 19th century. It is also common among the Irish diaspora in the United States.