Family name origins & meanings
- Irish : reduced Anglicized form of two distinct Gaelic names, which have now become confused: Ó Cuinneáin ‘descendant of Cuinneán’, a personal name from a diminutive of conn ‘chief’, and Ó Cuineáin ‘descendant of Cuineán’, a personal name from a diminutive of cana ‘whelp’.