Yūki Tai is a Japanese voice actor and stage actor born on October 6, 1977, in Tokyo, Japan. He is affiliated with the talent agency Remax, having moved there in September 2009 after previously being with Genki Project.

Tai's career began around 2000, and he has built a substantial body of work across anime, games, and drama CDs. One of his early prominent roles was as Jun'ichi Asakura in the D.C. ~Da Capo~ series of anime and games. He gained further recognition for his performance as Kazuya Shibuya, also known as Naru, in the supernatural series Ghost Hunt. Another significant role from this period was D'Eon de Beaumont, the lead character in the historical fantasy series Le Chevalier D'Eon.

Over the years, Tai has portrayed a wide range of characters. In the sports anime and game franchise Inazuma Eleven GO, he voiced the character Masaki Kariya, among many others. His other notable anime roles include Kyōsuke Tsutsumi in ef: a tale of memories. and ef: a tale of melodies, Kentarō Nara in School Rumble, and Takeo Katsuta in Hyouka. He also played the role of Peter in Black Butler: Book of Circus. In addition to his animation work, Tai has voiced characters in numerous video games, such as Cobray Gordon in the Super Robot Wars series, Acty Axel in Prism Ark, and Haruo Satō in Bungō to Alchemist.

Regarding the Touken Ranbu franchise, Tai voices the characters Sōza Samonji and Tarōtachi. He has portrayed these roles across various media, including the original browser game, the anime series Touken Ranbu: Hanamaru and its sequel Zoku Touken Ranbu: Hanamaru, and the more recent series Touken Ranbu Kai: Kyoden Moyuru Honnōji.

Throughout his career, Tai has frequently collaborated with voice actors such as Daisuke Kishio and Ken Narita. He was formerly a member of the male voice actor unit Revolver, which was formed under singer Mikika Kanai, but he left the group in December 2005.