Terumi Nishii(西位 輝実Nishii Terumi) is a Japanese animator credited as the chief animation director and character designer for JoJo's Bizarre Adventure: Diamond Is Unbreakable by David Production. Graduating from Osaka College of Design, Nishii was an animator previously affiliated with Studio Cockpit before working freelance. She and Mitsuko Baba are often cited as the right-hands of Yoshihiko Umakoshi, the three of them having very similar character designs. Nishii's work consists primarily of animation and publishing dōjinshi, most notably "Crown of Uroboros."