| Ayuko Suzuki | |
| Birth Date: | 8 October 1991 |
| Birth Place: | Toyohashi, Aichi Prefecture, Japan |
| Height: | 1.54 m |
| Weight: | 38 kg |
| Sport: | Track and field |
| Event: | 1500-10,000 m, Marathon |
| Pb: | 1500 m – 4:18.75 (2010) 3000 m – 8:58.08 (2014) 5000 m – 15:08.29 (2015) 10,000 m – 31:18.16 (2016) Marathon – 2:22:02 (2022) |
| Club: | Japan Post Holdings |
| Coach: | Masahiko Takahashi[1] |
| Education: | Nagoya University[2] |
| Show-Medals: | yes |
is a Japanese long-distance runner.[3] She competed in the 5000 metres at the 2015 World Championships in Beijing finishing ninth. In addition, she won two medals at the 2013 Summer Universiade.
| 2010 | World Junior Championships | Moncton, Canada | 5th | 5000 m | 15:47.36 | |
| 2013 | Universiade | Kazan, Russia | bgcolor=silver | 2nd | 5000 m | 15:51.47 |
| bgcolor=gold | 1st | 10,000 m | 32:54.17 | |||
| 2015 | World Championships | Beijing, China | 9th | 5000 m | 15:08.29 | |
| 2016 | Olympic Games | Rio de Janeiro, Brazil | 24th (h) | 5000 m | 15:41.81 | |
| 2017 | World Championships | London, United Kingdom | 26th (h) | 5000 m | 15:24.86 | |
| 10th | 10,000 m | 31:27.30 | ||||
| 2021 | Olympic Games | Sapporo, Japan | 19th | Marathon | 2:33:14 | |
| 2022 | Berlin Marathon | Berlin, Germany | 8th | Marathon | 2:22:02 |