Reaghan is a Celtic name for girls. The meaning is `Little king. Nobility` The name Reaghan is most commonly given to American girls. What do they use in other countries? Reagan (English, Irish) Raegan (English) Found on https://www.pregnology.com/names/girls/Reaghan
1) Celtic girl name 
Reaghan is a Celtic name for girls. The meaning is `Little king. Nobility` The name Reaghan is most commonly given to American girls. What do they use in other countries? Reagan (English, Irish) Raegan (English)