Wakanohana Kanji I (Japanese: 若乃花 幹士, Hepburn: Wakanohana Kanji, March 16, 1928 – September 1, 2010) was a Japanese professional sumo wrestler. He was the sport's 45th yokozuna. He was a popular wrestler and was nicknamed the "Devil of the Dohyō" (土俵の鬼, Dohyō no Oni) due to his great fighting spirit and endurance.