Ikkyū-san is a Japanese historical comedy anime series produced by Toei Animation, based on the recorded early life of Zen Buddhist monk Ikkyū during his stay at Ankoku-ji Temple.

Ikkyū was an eccentric, iconoclastic Japanese Zen Buddhist monk and poet. He had a great impact on the infusion of Japanese art and literature with Zen attitudes and ideals, as well as on Zen itself, including breaking Buddhist monastic teachings with his stance against celibacy.