The name 'Urashima Taro' appeared in Medieval times, but before that the character was called 'Ura Shimako,' which was a shortened version of Mizunoe no ura no Shimako.
「浦島太郎」という名前は中世から登場し、それ以前は水江浦嶼子を略して「浦島子」と呼ばれている。