Little king or impulsive
A modern spelling variant of the Irish surname Reagan. It is derived from the Gaelic name RiagΓ‘n, which stems from the word 'rΓ' meaning king, combined with a diminutive suffix. It is also sometimes associated with the word 'riach', meaning impulsive.
Less common today
Reigan isn't in the latest US Top 1000. It last peaked at #6,556 in 2016.
US births per 5-year period, 1990βpresent (SSA data).