A Japanese manga series written and illustrated by Rumiko Takahashi with an anime adaptation. The story revolves around a 16-year old boy named Ranma Saotome who was trained from early childhood in martial arts. As a result of an accident during a training journey, he is cursed to become a girl when splashed with cold water, but hot water will change him back into a boy.

In Japan, the manga was serialized in Shogakukan's Shônen Sunday where it ran from 1987–1996.