Musashi no Ken(六三四の剣) is a Japanese sports manga series written and illustrated by Motoka Murakami that focuses on kendo. It was serialized by Shogakukan in Shōnen Sunday between April 1981 and October 1985. Musashi no Ken received the 1984 Shogakukan Manga Award for shōnen manga. The manga was adapted as a 72-episode anime television series by Eiken.