Jotaro Kujo (空条 承太郎 Kūjō Jōtarō) is the protagonist of Stardust Crusaders. He appears prominently in Diamond is Unbreakable, briefly in Vento Aureo, and again in a key role in Stone Ocean. Jotaro is the third and most recurring JoJo of the JoJo's Bizarre Adventure series.

Jotaro is a biracial (half-Japanese) delinquent who lives an ordinary life until the Joestar Family's old enemy, DIO, returns. Seeing his mother Holy falling ill because of DIO, and heeding his grandfather Joseph Joestar's call, Jotaro travels to Egypt in order to save his mother and stop the Vampire once and for all.

Wielding the incredibly powerful Star Platinum, Jotaro is the first JoJo introduced with a Stand, and is among the most well-known characters of the series.