Casey surname: meaning and origin
Casey means descendant of Cathasach, meaning vigilant. It is a native Gaelic Irish family from Cork, Limerick and Dublin.
| Irish form | Ó Cathasaigh |
|---|---|
| Meaning | descendant of Cathasach, meaning vigilant |
| Home region | Cork, Limerick and Dublin (Munster) |
| Origin | Gaelic |
| Variants | O'Casey, Cassidy |
History of the Casey name
Casey comes from separate families in Munster and in Dublin (Saggart). The playwright Seán O'Casey adopted the Irish form of his name.
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
- CollinsÓ Coileáin · descendant of Coileán
Frequently asked questions
What does the surname Casey mean?
Casey (Irish: Ó Cathasaigh) means descendant of Cathasach, meaning vigilant.
What is the Irish spelling of Casey?
The Irish-language form of Casey is Ó Cathasaigh.
Where is the surname Casey from?
Casey is a native Gaelic Irish family, associated with Cork, Limerick and Dublin in Munster.
What are other spellings of Casey?
Related spellings and forms include O'Casey, Cassidy.