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Curran (Irish: Ó Corráin) is an Irish and also a Scottish surname.
The Irish surname is now found in County Waterford but originates in eastern County Cork, where the Ó Corráins were a major branch of the ruling dynasty of the ancient Uí Liatháin kingdom.
The two most prominent septs of the Uí Liatháin were the following:
see also: