Koyoharu Gotouge (Japanese: 吾峠 呼世晴, Hepburn: Gotōge Koyoharu, born May 5, 1989) is a Japanese manga artist, known for the manga series Demon Slayer: Kimetsu no Yaiba (2016–2020). As of February 2021, the manga had over 150 million copies in circulation (including digital copies), making it the ninth best-selling manga series of all time.