Taiyo Koga
| Personal information | |||
|---|---|---|---|
| Full name | Taiyo Koga | ||
| Date of birth | October 28, 1998 | ||
| Place of birth | Urayasu, Chiba, Japan | ||
| Height | 1.82 m (5 ft 11+1⁄2 in) | ||
| Position | Centre back | ||
| Team information | |||
Current team | Kashiwa Reysol | ||
| Number | 4 | ||
| Youth career | |||
| –2007 | Maihama FC Falcons | ||
| 2008–2016 | Kashiwa Reysol | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2017– | Kashiwa Reysol | 246 | (3) |
| 2018 | → Avispa Fukuoka (loan) | 21 | (0) |
| International career‡ | |||
| 2021 | Japan U23 | 2 | (0) |
| 2019– | Japan | 3 | (0) |
|
* Club domestic league appearances and goals as of 10 September 2025 ‡ National team caps and goals as of 23:21, 15 July 2025 (UTC) | |||
Taiyo Koga (古賀 太陽, Koga Taiyō; born October 28, 1998) is a Japanese football player. He plays for Kashiwa Reysol and the Japan national team.