Kamen Rider Zi-O (仮面ライダージオウ, Kamen Raidā Jiō) may refer to any of the following characters. Users other than versions of Sougo Tokiwa As the leading rider protagonist of Kamen Rider Zi-O, Zi-O is labeled Kamen Rider #35 (仮面ライダー35号, Kamen Raidā Sanjūgogō) and Heisei Rider #20 (平成ライダー20号, Heisei Raidā Nijūgō). "Zi" in Zi-O's name could mean either time (時, Ji) or character (字, Ji), representing his "watch" and "Katakana" motifs while the "O" means king (王, Ō). It may also be Goroawase for the numb