Information
| Coaches | Imura Masayo, Takita Risako, Miyakawa Miya, Hanamure Masami (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 | Fujiki Mayuko, Tachibana Miya, Takeda Miho |
| Scores | 2017-2021 |
Athletes
- Active
| Adachi Yumi | Fukumura Juka | Inui Yukiko | Kijima Moeka |
| Kumagai Hinata | Kyogoku Okina | Marumo Kei | Omata Kano |
| Tsukamoto Mayu | Yanagisawa Akane | Yasunaga Mashiro | Yoshida Megumu |
- Retired
| Abe Atsushi | Hakoyama Aika | Hayashi Aiko | Mitsui Risako |
| Nakamaki Kanami | Nakamura Mai | Yoshida Kurumi |
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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.