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Squad of Japan for AFC U-23 Championship 2018
| # | | | | Player | | Height | |
Age | | | Position |
Team |
| 23 | |
| |
Abe, Koto
| | 1.84 | | 20 | | | GK |  Tsukuba |
| 11 | |
| |
Endo, Keita
| | 1.75 | | 20 | | | MF Left-midfield/Right-midfield | YokohamaM |
| 2 | |
| |
Fujitani
| | 1.78 | | 20 | | | DF Right-back/Right-midfield | Kobe |
| 7 | |
| |
Hara, Teruki
| | 1.80 | | 19 | | | DF Right-back/Defensive midfielder | Niigata |
| 12 | |
| |
Hatano, G
| | 1.97 | | 19 | | | GK | FC Tokyo |
| 18 | |
 | |
Hatate, R
| | 1.72 | | 20 | | | MF Left-midfield/Left-back | |
| 16 | |
| |
Inoue, Shion
| | 1.67 | | 20 | | | MF Box-to-Box midfielder/Either side midfield | Tokyo Vdy |
| 4 | |
 | |
Itakura
| | 1.86 | | 20 | | | DF Centre-back/Defensive midfielder | Sendai |
| 21 | |
 | |
Ito, Hiroki (1999)
| | 1.86 | | 18 | | | DF Centre-back/Left-back | |
| 13 | |
| |
Iwasaki, Yuto
| | 1.72 | | 19 | | | FW Left-wing/Striker | Kyoto |
| 17 | |
| |
Kamiya, Y
| | 1.76 | | 20 | | | MF Attacking midfielder | Ehime |
| 20 | |
| |
Koga, Taiyo
| | 1.82 | | 19 | | | DF Either side back/Centre-back | Kashiwa |
| 1 | |
| |
Kojima, R
| | 1.83 | | 20 | | | GK | |
| 19 | |
| |
Komatsu, R
| | 1.83 | | 19 | | | FW Striker | Matsumoto |
| 10 | |
 | |
Miyoshi, Koji
| | 1.67 | | 20 | | | MF Attacking midfielder/Right-wing | |
| 8 | |
| |
Morishima, T
| | 1.72 | | 20 | | | MF Attacking midfielder | Hiroshima |
| 6 | |
| |
Naganuma, Y
| | 1.77 | | 20 | | | MF Right-midfield | |
| 15 | |
| |
Shoji, H
| | 1.87 | | 20 | | | DF Centre-back | Kanazawa |
| 9 | |
| |
Tagawa
| | 1.81 | | 18 | | | FW Striker | Tosu |
| 14 | |
| |
Takagi, A
| | 1.75 | | 20 | | | FW Striker/Either side wing | G Osaka |
| 22 | |
| |
Tatsuta
| | 1.89 | | 19 | | | DF Centre-back | Shimizu |
| 3 | |
| |
Urata, I
| | 1.77 | | 20 | | | DF Left-back/Left-midfield | Kitakyush |
| 5 | |
| |
Yanagi
| | 1.84 | | 20 | | | DF Right-back/Centre-back | FC Tokyo |
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