Naoya Zenin is a fictional sorcerer from the manga and anime Jujutsu Kaisen, born in Kyoto as the youngest son of Naobito Zenin and a member of the powerful Zenin clan. He inherited the cursed technique Projection Sorcery, was praised as a genius from childhood, and rose to lead the Hei, the clan's elite unit.

He is known for his arrogance, his sharp Kansai-accented tongue, and a hatred of being challenged. His rivalry with his cousin Maki Zenin, whom he treats as an imposter, drives much of his story, and he admires Toji Fushiguro as the only person he respects. His story ends with his defeat by Maki, a return as a vengeful cursed spirit, and his final exorcism during the Culling Game