Summary

The surname Hennessy is of Irish origin and is derived from the Gaelic name O hAonghusa, meaning "descendant of Angus". It is believed to have originated in County Cork, Ireland. The Hennessy family has a rich history and is associated with various notable individuals and achievements throughout the years.
There are
9338
Hennessys in the USA
Hennessy is the
3790th
most common last name in the USA

Historical figures and celebrities called Hennessy

WilliamHennessy

American painter known for his realistic depictions of landscapes, portraits, and historical scenes.

RichardHennessy

Irish military officer who founded the Hennessy cognac distillery in France in 1765.

MauriceHennessy

Descendant of Richard Hennessy and former CEO of the House of Hennessy, a renowned cognac producer.

TerryHennessy

Australian cricketer who played as a right-handed batsman and represented his country in the 1960s.

JasHennessy

The most famous maker of cognac, established in 1765 and based in Cognac, France.

Hennessy Genealogy

OriginsIreland
Geographic DistributionWorldwide
VariationsHennessey
Migration and ImmigrationMigration and immigration of individuals with the surname Hennessy occurred predominantly during the 19th and early 20th centuries. Many people with this surname emigrated from Ireland to various countries, including the United States, Canada, Australia, and New Zealand. The reasons for migration and immigration varied, encompassing economic opportunities, political unrest, and the Great Famine in Ireland.