Regan

Patronymic

Meaning

Descendant of Riagán, derived from the Gaelic 'ríg' (king) and the diminutive suffix '-án,' meaning 'little king.'

Etymology

The surname originates from the Irish 'Ó Riagáin,' where 'Ó' denotes 'descendant of' and Riagán is a diminutive form. The root 'ríg' means 'king,' making the name literally 'descendant of the little king.'

About the Regan Surname

Regan is an Irish surname with roots in Connacht, particularly in County Roscommon. The name has been borne by various notable families throughout Irish history.

Distribution & Frequency

Estimated 105,000 bearers in the United States #385 most common surname
Rare Common

Concentrated in County Roscommon and the Connacht region of Ireland, with diaspora communities in the United States, Canada, and Australia.

Regan Surname Distribution

Geographic distribution based on Civil War military records.

Fewer
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People with the Regan Surname