Regan Family History
Regan Name Meaning
Irish: shortened form of O'Regan an Anglicized form of Gaelic Ó Ríagáin ‘descendant of Riagán’ a personal name which is perhaps akin to ríodhach ‘impulsive furious’. It can also be from Mag Riagáin ‘son of Riagán’. Compare Ryan .
Source: Dictionary of American Family Names ©2013, Oxford University Press