Japan at the 2017 Asian Winter Games
Japan competed in the 2017 Asian Winter Games in Sapporo and Obihiro, Japan from February 19 to 26. This marked the fourth time the country has played host to the Asian Winter Games.
Japan competed in all five sports.
Ice hockey player Go Tanaka was the country's flagbearer during the parade of nations at the opening ceremony.
Medal summary
Medal table
Medalists
Competitors
The following table lists the Japanese delegation per sport and gender.| Sport | Men | Women | Total |
| Alpine skiing | 4 | 4 | 8 |
| Biathlon | 6 | 6 | 12 |
| Cross-country skiing | 4 | 4 | 8 |
| Curling | 5 | 5 | 10 |
| Figure skating | 6 | 6 | 12 |
| Freestyle skiing | 4 | 4 | 8 |
| Ice hockey | 23 | 21 | 44 |
| Short track speed skating | 5 | 5 | 10 |
| Ski jumping | 4 | 4 | |
| Snowboarding | 4 | 6 | 10 |
| Speed skating | 10 | 10 | 20 |
| Total | 75 | 71 | 146 |
Alpine skiing
Japan's alpine skiing team will consist of eight athletes. The team was announced on January 19, 2017.;Men
- Naoki Yuasa
- Hideyuki Narita
- Yohei Koyama
- Tatsuki Matsumoto
- Emi Hasegawa
- Mio Arai
- Asa Ando
- Emiko Kiyosawa
Biathlon
- Junji Nagai
- Mikito Tachizaki
- Yuuki Nakajima
- Tsukasa Kobonoki
- Kosuke Ozaki
- Takuto Terabayashi
- Fuyuko Tachizaki
- Yurie Tanaka
- Rina Mitsuhashi
- Sari Furuya
- Asuka Hachisuka
- Kirari Tanaka
Cross-country skiing
;Men
- Akira Lenting
- Nobuhito Kashiwabara
- Naoto Baba
- Kohei Shimizu
- Yuki Kobayashi
- Hikari Miyazaki
- Chisa Obayashi
- Kozue Takizawa
Curling
Men's tournament
Japan's men's curling team consists of five athletes.- Yusuke Morozumi – skip
- Tetsuro Shimizu – third
- Tsuyoshi Yamaguchi – second
- Kosuke Morozumi – lead
- Koshuke Hirata – alternate
Japan has a bye in draw 3
;Draw 1
Saturday, February 18, 9:00
;Draw 2
Saturday, February 18, 18:00
;Draw 4
Monday, February 20, 13:30
;Draw 5
Tuesday, February 21, 9:00
;Draw 6
Tuesday, February 21, 18:00
;Semifinals
Wednesday, February 22, 1:30
;Gold medal match
''Friday, February 24, 1:30
Women's tournament
- Satsuki Fujisawa – Skip
- Mari Motohashi – Third
- Chinami Yoshida – Second
- Yurika Yoshida – Lead
- Yumi Suzuki – Alternate
Japan has a bye in draw 3
;Draw 1
Saturday, February 18, 13:30
;Draw 2
Saturday, February 19, 9:00
;Draw 4
Monday, February 20, 18:00
;Draw 5
Tuesday, February 21, 13:30
Figure skating
Japan's figure skating team consists of twelve athletes. On February 7, 2017, it was announced that Kaori Sakamoto would replace Satoko Miyahara, because the latter had sustained an injury to her hip.;Singles
;Mixed
Freestyle skiing
Japan's freestyle skiing team will consist of eight athletes. The team was announced on January 19, 2017.;Men
- Sho Endo
- Daichi Hara
- Ikuma Horishima
- Kosuke Sugimoto
- Miki Ito
- Arisa Murata
- Kisara Sumiyoshi
- Hinako Tomitaka
Ice hockey
Men's tournament
--------
Women's tournament
--------
----
----
Short track speed skating
Japan's speed skating team consists of 10 athletes. The team was officially unveiled on January 9, 2017.;Men
- Keita Watanabe
- Ryosuke Sakazume
- Kazuki Yoshinaga
- Hiroki Yokoyama
- Takayuki Muratake
- Moemi Kikuchi
- Hitomi Saito
- Sumire Kikuchi
- Ayuko Ito
- Aoi Watanabe
Ski jumping
;Men
- Yukiya Satō
- Naoki Nakamura
- Masamitsu Itō
- Yūken Iwasa
Snowboarding
;Men
- Ayumu Nedefuji - halfpipe
- Shinnosuke Kamino - slalom/giant slalom
- Yuya Suzuki - slalom/giant slalom
- Takumi Miyazawa - slalom/giant slalom
- Hikaru Oe - halfpipe
- Haruna Matsumoto - halfpipe
- Kurumi Imai - halfpipe
- Sena Tomita - halfpipe
- Eri Yanetani - slalom/giant slalom
- Asa Toyoda - slalom/giant slalom
Speed skating
;Men
- Takuro Oda - 1000 m, 1500 m
- Shota Nakamura - 1500 m, 1000 m, TP MS
- Ryosuke Tsuchiya - 5000 m, 10000 m, TP MS
- Shane Williamson 1500 m, 5000 m, 10000 m, TP, MS
- Seitaro Ichinohe 5000 m, 10000 m, TP
- Taro Kondo 1500 m
- Yuto Fujino 500 m, 1000 m
- Tsubasa Hasegawa 500 m
- Shunsuke Nakamura 500 m, 1000 m
- Yuma Murakami 500 m
- Nao Kodaira 500 m, 1000 m
- Miho Takagi 1000 m, 1500 m, 3000 m, TP, MS
- Mai Kiyama 5000 m
- Misaki Oshigiri 1500 m, 3000 m, TP
- Nana Takagi 1,500 m, TP, MS
- Ayano Sato 500 m, 1500 m, 3000 m, MS
- Arisa Go 500 m, 1000 m
- Maki Tabata 5000 m
- Maki Tsuji 500 m, 1000 m
- Fuyo Matsuoka 5000 m