Takaya Yamauchi is a Japanese actor and voice actor known for his extensive work in live-action television and film, as well as occasional roles in animation. He provided the voice for the character Eyepatch in the 2020 animated film Poupelle of Chimney Town.

Yamauchi's career spans several decades, with a significant number of credits in Japanese television dramas. His live-action roles include appearances in notable series such as the 2015 drama Asa ga Kita, the 2015 series Wise and Foolish, the 2016 drama Hayako Sensei, Kekkon Surutte Hontou desu ka?, and the 2018 series Weakest Beast. He has also appeared in the 2020 drama Off the Record and the 2021 historical series Reach Beyond the Blue Sky. More recent television work includes roles in Yamikin Saihara-san in 2022 and Game Change in 2026.

In addition to his television work, Yamauchi has appeared in several films. His film credits include the 2011 live-action film My Back Page and the 2019 film Aircraft Carrier Ibuki. His role in Poupelle of Chimney Town stands as one of his prominent works in animation. A review of his filmography suggests recurring collaborations with various actors and directors across his numerous projects in the Japanese entertainment industry.