Yūto Adachi is a Japanese voice actor and actor from Sakuragawa, Ibaraki Prefecture, Japan, where he was born on July 28, 1988. He began his entertainment career as a model and stage actor before transitioning to voice acting. He made his voice acting debut in 2015 with the television anime Naru Doma. He is currently active as a freelancer in the voice acting industry.

Adachi is known for several anime roles, including his portrayal of the third prince Bruno von Glanzreich in the 2017 anime adaptation of The Royal Tutor. He also voiced the character Troix, an inmate in Nanba Prison's Building 3, Cell 6, in the series Nanbaka and its subsequent installments.

In addition to his voice work, Adachi has a diverse career in the performing arts. He has appeared in stage productions, including a 2009 performance in Fur Marie directed by Akihiro Miwa, and starred in the Musical Nintama Rantaro starting in 2013. He has also been active as a singer and was a member of the dance vocal group NEVA GIVE UP until 2017.

Adachi is also known for his extensive ambassadorial work promoting his home prefecture. His appointments include Kasama Tourism Ambassador, Ibaraki Shimbun Goodwill Ambassador, and Ambassador to Ibaraki. In recognition of his contributions, he received the Kasama City Award in January 2025.