Oriordan Family History
Oriordan Surname Meaning
Irish (Kerry): Anglicized form of Gaelic Ó Ríoghbhárdáin ‘descendant of Ríoghbhárdán’ a byname composed of the elements ríogh- ‘royal’ + a diminutive of bárd ‘bard poet’ (see Riordan).
This family is probably descended from Ríoghbhardán Ó Cearbhaill who fell in battle in 1058.
Source: Dictionary of American Family Names 2nd edition, 2022
