O'Casey
Origin
Language(s)Old Irish
(Anglicized)
Meaningdescendant of Cathasach
(vigilant or watchful)
Region of originIreland
Other names
Variant form(s)O'Cathasaigh
Casey (disambiguation)
MacCasey

O'Casey is a common variation of the Gaelic cathasaigh, meaning vigilant or watchful, with the added anglicized prefix O' of the Gaelic Ó, meaning grandson or descendant. At least six different septs used this name, primarily in the Counties of Cork and Dublin.

People with the surname O'Casey include:

See also

References

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