Information
| Coaches | Masayo Imura, Risako Takita, Miya Miyakawa, Masami Hanamure (mixed duet) |
| Olympic Appearances * | Duet: 1984, 1988, 1992, 2000, 2004, 2008, 2012, 2016
Team: 1996, 2000, 2004, 2008, 2012, 2016 Solo: 1984, 1988, 1992 |
| Best Olympic Finishes | Duet: Second in 2000, 2004
Team: Second in 2000, 2004 Solo: Third in 1984, 1988, 1992 |
| Notable Swimmers | Mayuko Fujiki, Miya Tachibana, Miho Takeda |
| Scores | 2017-2021 |
Athletes
- Active
| Yumi Adachi | Juka Fukumura | Yukiko Inui | Moeka Kijima |
| Hinata Kumagai | Okina Kyogoku | Kei Marumo | Kano Omata |
| Mayu Tsukamoto | Akane Yanagisawa | Mashiro Yasunaga | Megumu Yoshida |
- Retired
| Atsushi Abe | Aika Hakoyama | Aiko Hayashi | Risako Mitsui |
| Kanami Nakamaki | Mai Nakamura | Kurumi Yoshida |
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*Synchronized swimming was at the Olympics for the first time in 1984. Duets were not an Olympic event in 1996. Teams first appeared at the Olympics in 1996. The solo event was held only three times (1984, 1988 and 1992) before being discontinued.