Japan at the 1968 Summer Olympics
competed at the 1968 Summer Olympics in Mexico City, Mexico. 171 competitors, 146 men and 25 women, took part in 97 events in 18 sports.
Medalists
| Medal | Name | Sport | Event | Date |
| Weightlifting | Men's 60 kg | October 14 | ||
| Wrestling | Men's freestyle 52 kg | October 20 | ||
| Wrestling | Men's freestyle 57 kg | October 20 | ||
| Wrestling | Men's freestyle 63 kg | October 20 | ||
Takeshi Katō | Gymnastics | Men's artistic team all-around | October 24 | |
| Gymnastics | Men's artistic individual all-around | October 24 | ||
| Gymnastics | Men's floor | October 26 | ||
| Gymnastics | Men's parallel bars | October 26 | ||
| Gymnastics | Men's horizontal bar | October 26 | ||
| Gymnastics | Men's rings | October 26 | ||
| Wrestling | Men's Greco-Roman 70 kg | October 26 | ||
| Weightlifting | Men's 75 kg | October 16 | ||
| Athletics | Men's marathon | October 20 | ||
| Hideo Fujimoto | Wrestling | Men's Greco-Roman 63 kg | October 26 | |
| Gymnastics | Men's floor | October 26 | ||
| Gymnastics | Men's vault | October 26 | ||
| Setsuko Yosjida Suzue Takayama Toyoko Iwahara Youko Kasahara Aiko Onozawa Yukiyo Kojima Sachiko Fukanaka Kunie Shishikura Setsuko Inoue Sumie Oinuma Makiko Furakawa Keiko Hama | Volleyball | Women's tournament | October 26 | |
| Masayuki Minami Katsutoshi Nekoda Mamoru Shiragami Isao Koizumi Kenji Kimura Yasuaki Mitsumori Naohiro Ikeda Jungo Morita Tadayoshi Yokota Seiji Oko Tetsuo Satō Kenji Shimaoka | Volleyball | Men's tournament | October 26 | |
| Weightlifting | Men's 60 kg | October 14 | ||
| Gymnastics | Men's artistic individual all-around | October 24 | ||
| Takeshi Katō | Gymnastics | Men's floor | October 26 | |
| Gymnastics | Men's horizontal bar | October 26 | ||
| Gymnastics | Men's rings | October 26 | ||
| Boxing | Men's bantamweight | October 26 | ||
| Kenzo Yokoyama Hiroshi Katayama Masakatsu Miyamoto Yoshitada Yamaguchi Mitsuo Kamata Ryozo Suzuki Kiyoshi Tomizawa Takaji Mori Aritatsu Ogi Eizo Yuguchi Shigeo Yaegashi Teruki Miyamoto Masashi Watanabe Yasuyuki Kuwahara Kunishige Kamamoto Ikuo Matsumoto Ryuichi Sugiyama Masahiro Hamazaki | Football | Men's football | October 26 |
Athletics
;Men;Track & road events
Boxing
;MenCanoeing
Sprint
;menCycling
One cyclist represented Japan in 1968.Track
;SprintRoad
;Men| Athlete | Event | Time | Rank |
| Sanji Inoue | time trial | 1:07.54 | 19 |
Diving
;Men;Women
Equestrian
Fencing
Five fencers, all men, represented Japan in 1968.;Men's foil
;Men's team foil
- Masaya Fukuda, Heizaburo Okawa, Fujio Shimizu, Kazuhiko Wakasugi, Kazuo Mano
Football
| Team | ||||||||
| 3 | 2 | 1 | 0 | 4 | 0 | +4 | 5 | |
| 3 | 1 | 2 | 0 | 4 | 2 | +2 | 4 | |
| 3 | 0 | 2 | 1 | 4 | 5 | −1 | 2 | |
| 3 | 0 | 1 | 2 | 4 | 9 | −5 | 1 |
;Quarterfinals
;Semi final
;Bronze Medal Match
Gymnastics
Hockey
Modern pentathlon
Three male pentathletes represented Japan in 1968.;Individual
;Team
- Yuso Makihira
- Katsuaki Tashiro
- Toshio Fukui
Rowing
Shooting
Six shooters, all men, represented Japan in 1968.;Open
Swimming
Volleyball
Men's Tournament
;groupplayWomen's Tournament
;Women's Team Competition- Round Robin
- Team Roster
Water polo
- Team Roster
| Team | Points | G | W | D | L | GF | GA | Diff | |
| 1. | 13 | 7 | 6 | 1 | 0 | 48 | 21 | +27 | |
| 2. | 11 | 7 | 5 | 1 | 1 | 65 | 18 | +47 | |
| 3. | 11 | 7 | 5 | 1 | 1 | 66 | 22 | +44 | |
| 4. | 9 | 7 | 4 | 1 | 2 | 42 | 28 | +14 | |
| 5. | 6 | 7 | 3 | 0 | 4 | 26 | 57 | -31 | |
| 6. | 3 | 7 | 1 | 1 | 5 | 27 | 56 | -29 | |
| 7. | 2 | 7 | 1 | 0 | 6 | 34 | 62 | -28 | |
| 8. | 1 | 7 | 0 | 1 | 6 | 21 | 65 | -44 |