| Japan | |
| Gender: | women |
| Type: | U18 |
| Image Border: | yes |
| Federation: | Japan Volleyball Association |
| Confederation: | AVC |
| Olympic Apps: | 1 |
| Olympic First: | 2010 |
| Olympic Best: | 4th place : (2010) |
| World Champs Apps: | 13 |
| World Champs First: | 1989 |
| World Champs Best: | Gold : (1995, 1999) |
| Regional Cup Apps: | 10 |
| Regional Cup First: | 1997 |
| Regional Cup Best: | Gold : (1997, 2007, 2008, 2010, 2012, 2014, 2017). |
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The Japan women's national under-18 volleyball team represents Japan in women's under-18 volleyball events, it is controlled and managed by the Japanese Volleyball Association that is a member of Asian volleyball body Asian Volleyball Confederation (AVC) and the international volleyball body government the Fédération Internationale de Volleyball (FIVB).
Champions Runners up Third place Fourth place
| Youth Olympic Games | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Year | Round | Position | Squad | ||||||
| 2010 | Semifinals | 4th place | Squad | ||||||
 2014 | No Volleyball Event | ||||||||
 2018 | |||||||||
| Total | 0 Titles | 1/1 | |||||||
Champions Runners up Third place Fourth place
| FIVB U18 World Championship[1] | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Year | Round | Position | Squad | ||||||
 1989 | Semifinals | Third place | Squad | ||||||
 1991 | Semifinals | 4th place | Squad | ||||||
| 1993 | Final | Runners-Up | Squad | ||||||
 1995 | Final | 1st place | Squad | ||||||
 1997 | 13th place | Squad | |||||||
| 1999 | Final | 1st place | Squad | ||||||
| 2001 | 5th place | Squad | |||||||
 2003 | Didn't Qualify | ||||||||
 2005 | |||||||||
 2007 | 7th place | Squad | |||||||
| 2009 | 5th place | Squad | |||||||
 2011 | 7th place | Squad | |||||||
| 2013 | 5th place | Squad | |||||||
 2015 | 9th place | Squad | |||||||
| 2017 | 5th place | Squad | |||||||
 2019 | 5th place | Squad | |||||||
| 2021 | withdrew | ||||||||
| Total | 2 Titles | 14/17 | |||||||
The following is the Japanese roster in the 2017 FIVB Girls' U18 World Championship.[2]
Head coach: Daichi Saegusa
| No. | Name | Date of birth | Height | Weight | Spike | Block | 2017 club |
|---|---|---|---|---|---|---|---|
| 1 | 1.590NaN0 | 57kg (126lb) | 265cm (104inches) | 255cm (100inches) |  Kinrankai High School | ||
| 2 | (C) | 1.690NaN0 | 57kg (126lb) | 281cm (111inches) | 270cm (110inches) | Sundai Gakuen High School | |
| 3 | 1.610NaN0 | 47kg (104lb) | 265cm (104inches) | 255cm (100inches) | Kinrankai High School | ||
| 4 | 1.770NaN0 | 71kg (157lb) | 292cm (115inches) | 278cm (109inches) | Fujimi High School | ||
| 5 | 1.720NaN0 | 62kg (137lb) | 304cm (120inches) | 293cm (115inches) | Kinrankai High School | ||
| 6 | 1.830NaN0 | 70kg (150lb) | 300cm (100inches) | 290cm (110inches) | Toyohashi Chuo High School | ||
| 7 | 1.710NaN0 | 62kg (137lb) | 288cm (113inches) | 280cm (110inches) | Kinrankai High School | ||
| 8 | 1.780NaN0 | 59kg (130lb) | 290cm (110inches) | 275cm (108inches) | Kinrankai High School | ||
| 9 | 1.770NaN0 | 69kg (152lb) | 289cm (114inches) | 280cm (110inches) | Osaka Kokusai Takii HS | ||
| 10 | 1.840NaN0 | 74kg (163lb) | 295cm (116inches) | 285cm (112inches) | Higashi Kyushu Ryukoku HS | ||
| 11 | 1.760NaN0 | 60kg (130lb) | 295cm (116inches) | 279cm (110inches) | Akita Kita High School | ||
| 12 | 1.730NaN0 | 54kg (119lb) | 304cm (120inches) | 280cm (110inches) | Kinrankai High School | ||