Casey Family History
Casey Name Meaning
Irish: shortened Anglicized form of Gaelic Ó Cathasaigh ‘descendant of Cathasach’ a byname meaning ‘vigilant’ or ‘noisy’. Compare Caissie . English and Irish (of Norman origin): from Old French Cauceis denoting someone from the Pays de Caux in Normandy.
Source: Dictionary of American Family Names 2nd edition, 2022