There are
157
Grennons in the USA
Grennon is the
111988th
most common last name in the USA

Historical figures and celebrities called Grennon

PatrickGrennan

Patrick Grennan was a renowned Irish poet and writer, known for his lyrical poetry and contributions to Irish literature during the 19th century.

BrigidGrennon

Brigid Grennon was a prominent Irish suffragette and women's rights activist, who played a significant role in advocating for women's rights and suffrage in Ireland during the early 20th century.

SeanGrennon

Sean Grennon was a celebrated Irish artist and painter, known for his vivid and expressive landscapes that captured the beauty of the Irish countryside.

NoraGrennon

Nora Grennon was a dedicated Irish educator and school administrator, recognized for her efforts in promoting quality education and empowerment of students in rural communities.

MichaelGrennon

Michael Grennon was a revered Irish musician and composer, who made significant contributions to traditional Irish music and the preservation of Irish musical heritage.

Grennon Genealogy

OriginsThe Grennon surname is predominantly Irish, with its origins in Gaelic culture. It may be derived from the Gaelic name O'Grianna or O'Griain, indicating a family or clan association.
Geographic DistributionThe Grennon surname is most commonly found in Ireland, particularly in County Offaly and the surrounding areas.
VariationsVariations of the Grennon surname include Grenan, O'Grennan, and Grinan.
Migration and ImmigrationWhile the Grennon surname may not have as extensive a history of migration and immigration as some other surnames, there have been instances of individuals with this surname emigrating to other countries, particularly during periods of Irish emigration.