Hennessy surname: meaning and origin
Hennessy means descendant of Aonghus (Aengus), meaning one strength or one choice. It is a native Gaelic Irish family from Offaly and Cork.
| Irish form | Ó hAonghusa |
|---|---|
| Meaning | descendant of Aonghus (Aengus), meaning one strength or one choice |
| Home region | Offaly and Cork (Munster) |
| Origin | Gaelic |
| Variants | Hennessey |
History of the Hennessy name
The Hennessys came from Offaly and spread to Cork, where Richard Hennessy founded the cognac house in France in 1765. The name looks back to Aonghus, the Irish form of Aengus.
The first name behind Hennessy
This surname comes from an old given name. Read about it: Aengus.
In Irish myth
The name looks back to a figure from Irish mythology.
More surnames from Munster
- Barryde Barra · from Barry
- O'BrienÓ Briain · descendant of Brian
- CahillÓ Cathail · descendant of Cathal
- O'CallaghanÓ Ceallacháin · descendant of Ceallachán
- McCarthyMac Cárthaigh · son of Cárthach
- CaseyÓ Cathasaigh · descendant of Cathasach
Frequently asked questions
What does the surname Hennessy mean?
Hennessy (Irish: Ó hAonghusa) means descendant of Aonghus (Aengus), meaning one strength or one choice.
What is the Irish spelling of Hennessy?
The Irish-language form of Hennessy is Ó hAonghusa.
Where is the surname Hennessy from?
Hennessy is a native Gaelic Irish family, associated with Offaly and Cork in Munster.
What are other spellings of Hennessy?
Related spellings and forms include Hennessey.