Guinan Family History
Guinan Name Meaning
Irish (Offaly Tipperary and Kilkenny): shortened 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’.
Source: Dictionary of American Family Names 2nd edition, 2022