Kohei Yamakoshi
| Personal information | |||
|---|---|---|---|
| Full name | Kohei Yamakoshi | ||
| Date of birth | 4 May 1993 | ||
| Place of birth | Yaita, Tochigi, Japan | ||
| Height | 1.81 m (5 ft 11 in) | ||
| Position | Defender | ||
| Team information | |||
Current team | Tokushima Vortis | ||
| Youth career | |||
| KT Union | |||
| 2006–2008 | Tochigi SC | ||
| 2009–2011 | Yaita Chuo High School | ||
| College career | |||
| Years | Team | Apps | (Gls) |
| 2012–2015 | Meiji University | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2016–2021 | Omiya Ardija | 105 | (2) |
| 2022–2024 | Tokyo Verdy | 55 | (3) |
| 2024 | → JEF United Chiba (loan) | 12 | (0) |
| 2025– | Tokushima Vortis | 30 | (0) |
| * Club domestic league appearances and goals as of 1 January 2026 | |||
Kohei Yamakoshi (山越 康平, Yamakoshi Kōhei; born 4 May 1993) is a Japanese professional footballer who plays as a defender for the J2 League club Tokushima Vortis.