Takuya Eguchi is a Japanese voice actor and singer from Setagaya, Tokyo. He is affiliated with 81 Produce. He has voiced in a number of lead roles in anime shows including Kazuya Kujo in Gosick, Yoshiharu Sagara in The Ambition of Oda Nobuna, Kon Hokaze in Ixion Saga DT, Hachiman Hikigaya in My Youth Romantic Comedy Is Wrong, As I Expected, William Twining in Devils and Realist, Takeo Gōda in My Love Story. He won Best New Actor award at the 6th Seiyu Awards, and Best Voice Actor in the Newtype Anime Awards 2015. In 2017, Eguchi launched a manga about his life called Eguchi Takuya no Gainen Planet, to be published on Kadokawa's Dengeki Girl's Style Online website.

Since then, Eguchi has taken on several of his most recognized roles. He voiced Kakeru Manabe in the Fruits Basket reboot (2019), Yūji Terushima in Haikyū!!, and Kyōya Mitsurugi in KonoSuba, while also appearing in Demon Slayer: Kimetsu no Yaiba – The Movie: Mugen Train (2020).

His breakthrough came in 2022 as Loid Forger (Twilight) in Spy x Family. The role earned him two honors at the 17th Seiyu Awards (2023): Best Actor in a Leading Role and the fan-voted Most Valuable Seiyū Award. He reprised the role in Season 2 and the film Spy×Family Code: White, and also voiced Akihiko Kaji in Given around the same time.

In 2024–2026, he stayed highly active with roles in Grand Blue Dreaming (S3, July 2026), My Deer Friend Nokotan, and Honey Lemon Soda. In 2026, he also reprised Julius Juukulius in Re:Zero Season 4 (April 2026), voiced Karashi Nerimaya in Akane-banashi (April 2026), and joined the cast of That Time I Got Reincarnated as a Slime the Movie: Tears of the Azure Sea.