O'Casey
Introduction '''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:* Seán O'Casey (1880–1964), Irish playwright* Eileen O'Casey (1900–1995), Irish actress, author, and wife of Sean O'Casey* Breon O'Casey (1928–2011), son of Seán and Eileen O'Casey* Lance O'Casey, cartoon character* Ronan O'Casey (1922–2012), Canadian actor and producer* O'Casey (O'Cathasaigh), chief of Saithne, now Sonagh, in Westmeath; see Tuite Baronets
See also * Casey (surname)* Casey (disambiguation)
References * Surname DB* Irish Family Names* The Casey Clan
External links * http://caseycloudconcepts.blogspot.com/2011/01/whats-in-name-casey.html?showComment=1350277679751#c2813048136101307288