Kosuke Yamazaki
| Personal information | |||
|---|---|---|---|
| Full name | Kosuke Yamazaki | ||
| Date of birth | December 30, 1995 | ||
| Place of birth | Saitama, Japan | ||
| Height | 1.82 m (5 ft 11+1⁄2 in) | ||
| Position | Defender | ||
| Team information | |||
Current team | Yokohama FC | ||
| Number | 30 | ||
| Youth career | |||
| Omiya KS United 02 | |||
| –2013 | Omiya Ardija | ||
| College career | |||
| Years | Team | Apps | (Gls) |
| 2014–2017 | Meiji University | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2018–2020 | Ehime FC | 90 | (4) |
| 2021–2022 | Montedio Yamagata | 74 | (2) |
| 2023–2024 | Sagan Tosu | 63 | (1) |
| 2025– | Yokohama FC | 21 | (0) |
| * Club domestic league appearances and goals as of 16 September 2025 | |||
Kosuke Yamazaki (山﨑 浩介, Yamazaki Kōsuke; born December 30, 1995) is a Japanese footballer who plays as a centre-back for J2 League club Yokohama FC.