| Japan | |
| Association: | Japan Hockey Association |
| Confederation: | AHF (Asia) |
| Regional Name: | Junior World Cup |
| Regional Cup Apps: | 2 |
| Regional Cup First: | 2016 |
| Regional Cup Best: | 7th (2023) |
| 2Ndregional Name: | Junior Asia Cup |
| 2Ndregional Cup Apps: | 8 |
| 2Ndregional Cup First: | 1992 |
| 2Ndregional Cup Best: | 2nd (2015) |
The Japan women's national under-21 field hockey team represent Japan in women's international under-21 field hockey competitions and is controlled by the Japan Hockey Association, the governing body for field hockey in Japan.
| Junior World Cup record | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Year | Host | Position | Squad | |||||||
| 1989 to 2013 | did not qualify | |||||||||
| 2016 | Santiago, Chile | 9th | 5 | 2 | 1 | 2 | 9 | 6 | Squad | |
| 2022 | Potchefstroom, South Africa | withdrew[1] | ||||||||
| 2023 | Santiago, Chile | 7th | 6 | 3 | 0 | 3 | 11 | 8 | Squad | |
| Total | 11 | 5 | 1 | 5 | 20 | 14 | ||||
| Junior Asia Cup record[2] | |||
|---|---|---|---|
| Year | Host | Position | |
| 1992 | Kuala Lumpur, Malaysia | 4th | |
| 1996 |  Shirane, Japan | 3rd | |
| 2000 | Kuala Lumpur, Malaysia | 4th | |
| 2004 |  Hyderabad, India | 4th | |
| 2008 | Kuala Lumpur, Malaysia | 4th | |
| 2012 |  Bangkok, Thailand | 4th | |
| 2015 |  Changzhou, China | 2nd | |
| 2023 | Kakamigahara, Japan | 3rd | |
| Best result | 2nd | ||