Casey
PatronymicMeaning
Descendant of Cathasach, meaning vigilant or watchful.
Etymology
Derived from the Irish Ó Cathasaigh, from the personal name Cathasach. The surname is associated with County Cork and County Limerick.
About the Casey Surname
Casey is a prominent Munster surname with medieval roots in southwest Ireland. The name became well-known internationally through Irish emigration and cultural figures.
Distribution
Concentrated in Munster, particularly in County Cork, County Limerick, and County Kerry.