Sayuri Inoue is a Japanese actress and former idol who has one known credit as a voice actor in anime. She was born on December 14, 1994, in Saitama Prefecture. Her career began in the entertainment industry when she joined the prominent Japanese idol group Nogizaka46 as a first-generation member in 2011. She remained with the group until her graduation in April 2020, after which she continued her career as an actress, focusing on stage, television, and film roles.

Inoue's sole credit in anime voice acting is the role of Dux in the 2018 television series Lord of Vermilion: The Crimson King. This series is an adaptation of Square Enix's arcade trading card game and features an extensive cast. Her participation in the project was noted in multiple announcements about the show's cast, where she was identified both as a member of Nogizaka46 and as the voice of the character Dux. According to reporting at the time, she was the only member of the cast who was not reprising a role from the original video games, indicating that her character and performance were created specifically for the anime adaptation. Beyond this role, there are no records of her taking on additional work as a voice actor in anime.