Celtic, Female, Irish, Male, Names from Shakespeare's plays, Proto-Indo-European, R names, Surname names, Unisex, Virtues/Attributes


Regan has two sources: the first is that it’s a variant spelling of Reagan, an anglicized form of Irish surname Ó Ríagáin meaning “descendant of Riagán”, the latter a given name of uncertain meaning though it may mean “impulsive, furious” from Irish ríodhgach. It may also mean “little king” from Irish rí (king) which comes from Proto-Indo-European *h₃rḗǵs (king, ruler), combined with the diminutive suffix -an. Regan is also a female given name of unknown meaning, deriving from a different source than above. It may be Celtic in origin, though it’s been linked to given name Regina meaning “queen”. It’s the name of one of the three daughters of King Lear (1606) by Shakespeare, who based it on a real figure, Leir of Britain who lived around the 8th century BC, who also had 3 daughters: Goneril, Regan, and Cordelia.

Origin: Irish, Proto-Indo-European


Male forms:

  • Reagan (English, Irish)
  • Rioghan (Irish)
  • Riagan (Irish)


Female forms:

  • Regana (English)
  • Reagan (English, Irish)



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