Samurai Marathon (Japanese: サムライマラソン, Hepburn: Samurai Marason) is a 2019 Japanese-British historical action adventure film co-written and directed by Bernard Rose and starring Takeru Satoh, Nana Komatsu and Mirai Moriyama. It is based on the 2014 novel The Marathon Samurai: Five Tales of Japan’s First Marathon by Akihiro Dobashi, itself inspired by the origin story of the Ansei Toashi 30-km footrace held annually in Annaka City.