| Personal information | |||
|---|---|---|---|
| Full name | Koichi Kawai | ||
| Date of birth | March 29, 1979 | ||
| Place of birth | Ehime, Japan | ||
| Height | 1.78 m (5 ft 10 in) | ||
| Playing position | Defender | ||
| Youth career | |||
| 1997–2000 | Chukyo University | ||
| Senior career* | |||
| Years | Team | Apps | (Gls) |
| 2001–2006 | Ehime FC | 89 | (3) |
| Total | 89 | (3) | |
| * Senior club appearances and goals counted for the domestic league only. |
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Koichi Kawai (川井 光一 Kawai Koichi, born March 29, 1979) is a former Japanese football player. His brother is Kenta Kawai.