Yui Nakajima is a Japanese voice actress from Osaka Prefecture, born on October 11, 1991. She began her career affiliated with the agency EARLY WING in 2012 before moving to MAUSU PROMOTION in June 2017. Her professional voice acting debut came in 2013 with the role of Kanaka Amaya in the television anime series Aiura. Her early work includes minor roles in series such as World Conquest Zvezda Plot and a role as Gil in the first series of The Seven Deadly Sins.

Nakajima has built a career voicing characters across anime, games, and multimedia projects. In 2018, she voiced the character Akino Kanzaka in the television anime series My Sister, My Writer. That same year, she also took on roles in the series ISLAND as Mei Tandori and in The Girl in Twilight. She is known for her role as Hime Nonohara within the large-scale Tokyo 7th Sisters project, providing the voice for the character in the games, live performances, and the 2021 anime film Tokyo 7th Sisters: Bokura wa Aozora ni Naru.

Her voice acting portfolio extends to video games, with notable credits including Clala in the Mary Skelter series, Freche in Fire Emblem: Three Houses and its spin-off, and Saotome Ayaka in Ongeki. Beyond anime and games, Nakajima has been active in radio, hosting programs such as Much Suki Yanen for a decade, and has participated in live concerts and stage events related to her projects, particularly as part of the Tokyo 7th Sisters idol unit.