Meaning Reghan is a boys name of Celtic origin, it means a regal baby boy. Origin of Reghan Celtic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Reghan ray-gun Similar Names Reaghan Teyrnon Tiernay Aabid Annan Artek Artis Arty Atre Artturi Year by Year Popularity of Reghan