Japan at the 2023 East Asian Youth Games

Japan participated in the 2023 East Asian Youth Games in Ulaanbaatar, Mongolia on 16–23 August 2023. The nation sent 48 athletes competing in 7 sports. Japan finished second in the medal table with 22 gold medals, 6 silver medals and 13 bronze medals. 42 of the 48 delegated athletes won medals.

Athletics
Momoko Yamada Ion Kondo Sari Kamei Haruna Seta Kotoha Nakano Daiki Sasaki Ko Ochiai Wakushi Narukawa

Boxing
Miku Oikawa Amu Ota Ryuki Waga Keisuke Akimoto Shoma Okumura Fuma Kumamoto Jo Oikawa Ryota Ajiki

Esports
Riku Saito Haruki Arai

Judo
Keisho Mitsuishi Kanae Kurata Yuna Fukushima Katsuhiro Kaburagi

Table Tennis
Misuzu Takeya Saya Yamamuro Senri Tsukasa Sachi Aoki Takumi Tanimoto Daito Masaki Tamito Watanabe Kazuki Yoshiyama

Taekwondo
Otoa Ishida Ruka Okamoto Koharu Suzuki Takato Kato Ryusei Ohara Riku Takamaru

Wrestling
Chisato Yoshida Sowaka Uchida Sakura Onishi Rinka Ogawa Natsumi Masuda Mona Ezaka Natsura Okazawa Keyvan Gharehdaghi Akito Maehara Ariya Yoshida Yamato Ogawa Yamato Furusawa