Japan competed at the 2000 Summer Olympics in Sydney, Australia. 266 competitors, 156 men and 110 women, took part in 156 events in 28 sports. Medalists | width=78% align=left valign=top | | width=22% align=left valign=top | Archery Sayoko Kawauchi was the most successful Japanese archer in Sydney, advancing to the quarterfinal before being defeated by eventual silver medallist Kim Nam-Soon. Men's team competition: Makiyama, Matsushita, Hamano – Round of 16, 14th place (0-1) Athletics Men's competition Men's 100 m Shingo Kawabata Round 1 – 10.39 Round 2 – 10.6 (did not advance) Koji Ito Round 1 – 10.45 Round 2 – 10.25 Semifinal – 10.39 (did not advance) Shigeyuki Kojima Round 1 – 10.59 (did not advance) Men's 200 m Shingo Suetsugu Round 1 – 20.6 Round 2 – 20.37 Semifinal – 20.69 (did not advance) Koji Ito Round 1 – 20.75 Round 2 – 20.56 Semifinal – 20.67 (did not advance) Men's 400 m Jun Osakada Round 1 – 45.88 Round 2 – 46.15 (did not advance) Takahiko Yamamura Round 1 – 46.25 (did not advance) Kenji Tabata Round 1 – 46.59 (did not advance) Men's 5,000 m Toshinari Takaoka Round 1 – 13:29.99 Final – 13:46.90 (15th place) Katsuhiko Hanada Round 1 – 13:41.31 (did not advance) Men's 10,000 m Toshinari Takaoka Round 1 – 27:59.95 Final – 27:40.44 (7th place) Katsuhiko Hanada Round 1 – 27:45.13 Final – 28:08.11 (15th place) Men's 110 m Hurdles Satoru Tanigawa Round 1 – 13.74 Round 2 – 13.94 (did not advance) Men's 400 m Hurdles Kazuhiko Yamazaki Round 1 – 50.15 (did not advance) Hideaki Kawamura Round 1 – 50.68 (did not advance) Dai Tamesue Round 1 – 01:01.81 (did not advance) Men's 4 × 100 m Nobuharu Asahara, Koji Ito, Shingo Kawabata, Shigeyuki Kojima, Shingo Suetsugu Round 1 – 38.52 Semifinal – 38.31 Final – 38.66 (6th place) Men's 4 × 400 m Shunji Karube, Jun Osakada, Kenji Tabata, Takahiko Tamamura Round 1 – 03:05.21 Semifinal – 03:13.63 (did not advance) Men's Hammer Throw Koji Murofushi Qualifying – 78.49 Final – 76.60 (9th place) Men's Long Jump Masaki Morinaga Qualifying – 7.84 (did not advance) Daisuke Watanabe Qualifying – NM (did not advance) Men's Triple Jump Takamori Sugibayashi Qualifying – 16.67 (did not advance) Men's High Jump Takahisa Yoshida Qualifying – 2.15 (did not advance) Men's Pole Vault Manabu Yokoyama Qualifying – 5.55 (did not advance) Men's 20 km