Koutaro Nishiyama
Biography
Koutaro Nishiyama is a Japanese voice actor and singer known for his work in acting. He was born on October 11, 1991, in Kanagawa Prefecture, Japan. His Japanese stage name is written as 西山宏太朗, and he is also known by the names Kotaro Nishiyama and Kōtarō Nishiyama. His known credits include 49 acting roles in movies and television shows.
Career overview
Koutaro Nishiyama is a Japanese voice actor and singer. He was born on October 11, 1991, in Kanagawa Prefecture, Japan. His stage name is written in Japanese as 西山宏太朗, and he is also known by the name Kotaro Nishiyama.
Active primarily in the field of acting, Nishiyama has accumulated a significant body of work over the course of his career. Database records attribute him with forty-nine known credits in various movies and television shows. His professional background encompasses both voice acting and musical performance as a singer.
Ask the Vault
Ask anything about Koutaro Nishiyama.
Frequent co-stars
Career timeline
Full Filmography
52 titles- Tougen Anki (2025) as Jin Kougasaki (voice)
- Muzik Tiger in the Forest (2025) as Taffee (voice)
- With You, Our Love Will Make It Through (2025) as Yukihiro Aida (voice)
- HAIKYU!! The Dumpster Battle (2024) as Kazuhito Narita (voice)
- Egumi Legacy (2024) as Uninvited Guest (voice)
- 声優に丸なげ！ (2024) as Self
- My Happy Marriage (2023) as Koji Tatsuishi (voice)
- The Tale of Outcasts (2023) as Shura (voice)
- My New Boss Is Goofy (2023) as Kentaro Momose (voice)
- Ensemble Stars!! Reminiscence Selection: Element (2023) as Kanata Shinkai (voice)
- IDOLiSH7 7th Anniversary Event "ONLY ONCE, ONLY 7TH" (2023) as Minami Natsume
- Aoashi (2022) as Junnosuke Nakano (voice)
- The Heike Story (2022) as Emperor Takakura (voice)
- Dance Dance Danseur (2022) as Yamato Takura (voice)
- She Professed Herself Pupil of the Wise Man (2022) as Aizenfald (voice)
- OHA! Yo~idon (2022)
- To Your Eternity (2021) as Rean's Fiancé (voice)
- RE-MAIN (2021) as Eitaro Oka (voice)
- The Vampire Dies in No Time (2021) as Sagyou (voice)
- Dragon Goes House-Hunting (2021) as Archer (voice)
- Muteking the Dancing Hero (2021) as Winter (voice)
- SING "YESTERDAY" FOR ME (2020) as Amamiya (voice)
- A3! (2020) as Tsuzuru Minagi (Voice)
- Get Up! Get Live! #Geragera (2020) as Kaede Higashizawa (voice)
- Sakura Kakumei ~Hana Saku Otome-tachi~ (2020)
- Mix: Meisei Story (2019) as Ryo Akai (voice)
- Demon Slayer: Kimetsu no Yaiba (2019) as (voice)
- BEM (2019) as Roddy Walker (voice)
- A3! SECOND Blooming FESTIVAL (2019)
- Major 2nd (2018) as Hikaru Satō (voice)
- School Babysitters (2018) as Kashima Ryuuichi (voice)
- Mr. TONEGAWA Middle Management Blues (2018) as Toshimasa Kawasaki (voice)
- Skull-face Bookseller Honda-san (2018)
- The Ancient Magus' Bride (2017) as Isaac Farrar (voice)
- Cute High Earth Defense Club LOVE! LOVE! LOVE! (2017) as Atsushi Kinugawa
- Cute High Earth Defense Club LOVE! LOVE! LOVE! (2017) Theme Song Performance
- Free!: Take Your Marks (2017) as Tooru Iwashimizu / David (voice)
- Re:ZERO -Starting Life in Another World- (2016) as Kiritaka Muse (voice)
- ALL OUT!! (2016) as Youto Keta (voice)
- 91 Days (2016) as Frate (voice)
- Kiznaiver (2016) as Yoshiharu Hisomu (voice)
- Re：ゼロから始める異世界生活 (2016) as Koutarou Nishiyama
- Haruchika – Haruta & Chika (2016) as Kouji Iwasaki (voice)
- Cute High Earth Defense Club LOVE! (2015) as kinugawa atsushi (voice)
- Haikyu!! the Movie: The End and the Beginning (2015) as Kazuhito Narita (voice)
- Haikyu!! the Movie: The Winner and the Loser (2015) as Kazuhito Narita (voice)
- Haikyu!! (2014) as Kazuhito Narita (voice)
- Haikyu!! (2014) as Kawashita (voice)
- Your Lie in April (2014) as Soccer Club Member (voice)
- Noragami (2014) as Suzuha (voice)
- Blue Spring Ride (2014) as Middle school boy (voice)
- Tokyo Encounter (2010)
Frequently Asked Questions
What movies or TV shows is Koutaro Nishiyama best known for?
Koutaro Nishiyama is widely recognized for notable roles and projects including Tougen Anki (2025), HAIKYU!! The Dumpster Battle (2024), My Happy Marriage (2023), The Tale of Outcasts (2023).
When and where was Koutaro Nishiyama born?
Koutaro Nishiyama was born on October 11, 1991 in Kanagawa, Japan.
How many credits does Koutaro Nishiyama have?
Koutaro Nishiyama has accumulated over 52 film and television credits across a career spanning from 2010 to 2025.
What is Koutaro Nishiyama's background in cinema and television?
Koutaro Nishiyama is a Japanese voice actor and singer known for his work in acting. He was born on October 11, 1991, in Kanagawa Prefecture, Japan. His Japanese stage name is written as 西山宏太朗, and he is also known by the names Kotaro Nishiyama and Kōtarō Nishiyama. His known credits include 49 acting roles in movies a...