![Koutaro Nishiyama](https://image.tmdb.org/t/p/h632/6qKGsoetRrvOvlROdYx40CVlHtw.jpg)
Koutaro Nishiyama
- Title: Koutaro Nishiyama
- Popularity: 4.837
- Known For: Acting
- Birthday: 1991-10-11
- Place of Birth: Kanagawa, Japan
- Homepage: http://www.81produce.co.jp/actor_search/index.php/item?id=98
- Also Known As: Kotaro Nishiyama, 西山 宏太朗, Kōtarō Nishiyama, Koutarou Nishiyama