Koutaro Nishiyama
Actor · Theme Song Performance
Born Oct 11, 1991 · Kanagawa, Japan
Active 2010–present · Awards: Seiyu Award for Best Rookie Actor
Koutaro Nishiyama is a Japanese voice actor and singer from Kanagawa Prefecture, Japan. He is currently affiliated with 81 Produce.
Filmography
Tougen Anki (2025) — Jin Kougasaki (voice)With You, Our Love Will Make It Through (2025) — Yukihiro Aida (voice)Muzik Tiger in the Forest (2025) — Taffee (voice)Demon Slayer: Kimetsu no Yaiba (2019) — (voice)Haikyu!! (2014) — Kawashita (voice) · Kazuhito Narita (voice)Your Lie in April (2014) — Soccer Club Member (voice)Noragami (2014) — Suzuha (voice)Re:ZERO -Starting Life in Another World- (2016) — Kiritaka Muse (voice)The Ancient Magus' Bride (2017) — Isaac Farrar (voice)Blue Spring Ride (2014) — Middle school boy (voice)To Your Eternity (2021) — Rean's Fiancé (voice)My Happy Marriage (2023) — Koji Tatsuishi (voice)HAIKYU!! The Dumpster Battle (2024) — Kazuhito Narita (voice)91 Days (2016) — Frate (voice)Kiznaiver (2016) — Yoshiharu Hisomu (voice)SING "YESTERDAY" FOR ME (2020) — Amamiya (voice)School Babysitters (2018) — Kashima Ryuuichi (voice)Haikyu!! the Movie: The End and the Beginning (2015) — Kazuhito Narita (voice)Aoashi (2022) — Junnosuke Nakano (voice)Haikyu!! the Movie: The Winner and the Loser (2015) — Kazuhito Narita (voice)The Heike Story (2022) — Emperor Takakura (voice)Dance Dance Danseur (2022) — Yamato Takura (voice)Major 2nd (2018) — Hikaru Satō (voice)RE-MAIN (2021) — Eitaro Oka (voice)