Hennessy
“descendant of Aonghus”
The sept's historic heartland, highlighted. People moved — a name can be found far from home.
Is Hennessy an Irish name?
Hennessy is a Gaelic name: it was formed in Irish, from an Irish ancestor, before English was spoken here. In Irish the name is Ó hAonghusa.
What does the surname Hennessy mean?
Hennessy (Irish: Ó hAonghusa) means “descendant of Aonghus”. Origin: Gaelic sept.
Where in Ireland is the surname Hennessy from?
The historic homeland of the Hennessy name is Cork, Offaly. People moved, so the name can be found far beyond it.
What is the Irish for Hennessy?
Ó hAonghusa. Related spellings: Hennessey.
Looking for the Hennessy family crest? Read this first — arms belong to people, not surnames, and the honest version is more interesting. Tracing Hennessy ancestors? The step-by-step guide.
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