Scripts O Cathasaigh
Pronounced Pron. CASS-see
Other Forms FormsCasey, MacCasey, O'Casey, Caissey, and Caussey
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Contributor Contrib.jjjacobo121901 on 12/27/2016
This surname originated around ancient Scotland and Ireland. In its Gaelic form it is called, 'O Cathasaigh', which means 'the watchful one'.927 people have this surname, and is most prevalent in the United States.