Shuichi Kitaoka (北岡 秀一 Kitaoka Shūichi) is Kamen Rider Zolda (仮面ライダーゾルダ Kamen Raidā Zoruda, Masked Rider Zolda), a character in the tokusatsu production Kamen Rider Ryuki. He is the fourth of the 13 Kamen Riders the story revolves around. However, he served as the third main Rider in the series.