Ashikaga Yoshimitsu was the third shōgun of the Ashikaga shogunate, ruling from 1368 to 1394 during the Muromachi period of Japan. Yoshimitsu was Ashikaga Yoshiakira's third son but the oldest son to survive, his childhood name being Haruō (春王). Yoshimitsu was appointed shōgun, a hereditary title as head of the military estate, in 1368 at the age of ten; at twenty he was admitted to the imperial court as Acting Grand Counselor.

Shogun, officially sei-i taishōgun , was the title of the military rulers of Japan during most of the period spanning from 1185 to 1868. Nominally appointed by the Emperor, shoguns were usually the de facto rulers of the country. Although during part of the Kamakura period and Sengoku period, shoguns were figureheads themselves, with real power in the hands of the shikken (執権) of the Hōjō clan and kanrei (管領) of the Hosokawa clan. In addition, Taira no Kiyomori and Toyotomi Hideyoshi were leaders of the warrior class who did not hold the position of shogun, the highest office of the warrior class, yet gained the positions of daijō-daijin and kampaku , the highest offices of the aristocratic class. As such, they ran their governments as its de facto rulers.