Oni-Maru (鬼丸, lit. "Demon Circle") is one of the main antagonists in season 2 of the Virtua Fighter anime series.

Oni-Maru is a former member of the Hagakure clan, he had been expelled by the village elders due to his plot to kill Kage-Maru in order to become the clan's head. Enraged, Oni leaves to train himself and perfect his skills. He later orchestrates a massacre of his village kin, leading Kage to hunt him down in order to exact revenge for the deaths of the Hagakure clan.