The Irish surname Nunan is of patronymic origin and is very numerous: mainly Munster and South East. The name Nunan in Gaelic, Ó Nuanáin, a corruption of Ó h-Ionmhaineáin from ionmhain, meaning “dear or beloved”. A sept or clan of North County Cork, now numerous in county Limerick. Today there are 530 bearers of the name Nunan living in the United States.
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