Yuina Itō is a Japanese voice actress affiliated with the talent agency WITH LINE. She was born on October 31, 1996, in the town of Shimizu, located in the Kamikawa district of Hokkaido, Japan. She has blood type A and a height of 152cm.

Itō began her career in the voice acting industry in the mid-2010s, starting with minor roles in various television anime series. Some of her early appearances include a small part as a female student in the 2016 series Scorching Ping Pong Girls, a role as an audience member in Anonymous Noise in 2017, and providing the voice of a game sound in the 2018 series Grand Blue Dreaming. Her work in the early part of her career also extended to mobile games, where she voiced characters in titles such as Monster Strike and the Japanese role-playing game Panipani.

Itō is most famously known as the voice provider for the character Zundamon, a personification of zunda mochi (a sweet soybean paste from the Tohoku region). Her connection to this role began with the 2017 anime short film Zunda Horizon, where she provided the voice for Zundamon. This role is considered her breakout performance and has since become her signature character. Beyond the anime, she has provided the voice for Zundamon across a wide range of voice synthesis software, including UTAU, VOICEVOX, NEUTRINO, VOICEPEAK, CeVIO AI, and VoiSona, making her the official human voice source for the popular virtual singer and mascot.

Her career expanded further with a more prominent role in the 2024 original anime series Mayonaka Punch, where she voiced the character Ichiko. In the series The Klutzy Class Monitor and the Girl with the Short Skirt, which the user inquiry mentions as The Klutzy Class Monitor and the Girl with the Short Skirt, she plays the role of Motoko Akina, though details about this specific production are not present in the search results. Additional anime roles include parts in Sengoku Youko: Senma Konton-hen in 2024, and in 2025 she is scheduled to appear as a student in Jibaku Shounen Hanako-kun 2, and as Kaki-mi in That’s Journey. In the video game field, she has voiced characters such as Bell in Azur Lane and provided voice work for Kemono Friends 3.

Itō has been involved in recurring collaborations linked to the Zundamon character. She co-hosts a web radio program titled Yuina to Zundamon no ZunPara Radio, which further solidifies her public association with the character. Her achievements are primarily tied to her success as the voice behind Zundamon, a role that has garnered significant attention within both the anime community and the field of vocal synthesis technology. Her work has been instrumental in the character's rise to popularity on platforms like YouTube and in the world of voice generation software.