The family name Reagan, and its cognates Regan, O'Regan, O Regan, O'Reagan, is an Anglicized form of the Irish surname Ó Riagáin or Ó Ríogáin, from Ua Riagáin. The meaning is likely to originate in ancient Gaelic from ri "sovereign, king" and the diminutive -in, "the king's child", transliterating as "little king"[1]

The feminine forename Regan is likely to have derived sometime later from the English royal name Regina.[2]

Notable people with the surname include:

References

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  1. ^ "Meaning of Reagan". Archived from the original on 1 September 2015. Retrieved 24 April 2024.
  2. ^ "History of the Irish name Reagan". Ireland Calling.