The name of ryuto is named after the Palace of the Dragon King by Itsukushima Myojin (the great deity of Itsukushima) which is enshrined in Itsukushima-jinja Shrine for Watatsumi (tutelary of the sea).
龍燈の名は、厳島神社で祀られている厳島明神が海神のために龍宮にちなんで名づけられたともいう。