| Yuki Koike | |
| Nationality: | Japanese |
| Birth Date: | 13 May 1995 |
| Birth Place: | Otaru, Japan |
| Height: | 1.73 m |
| Weight: | 73 kg |
| Sport: | Athletics |
| Event: | Sprinting |
| Education: | Keio University |
| Coach: | Junichi Usui |
is a Japanese sprinter. He won a gold medal in the 200 metres at the 2018 Asian Games.
| Representing | ||||||
|---|---|---|---|---|---|---|
| 2014 | World Junior Championships | Eugene, United States | 4th | 200 m | 20.34 | |
| bgcolor=silver | 2nd | 4 × 100 m relay | 39.02 | |||
| 2015 | Asian Championships | Wuhan, China | 13th (h) | 100 m | 10.701 | |
| Universiade | Gwangju, South Korea | 10th (sf) | 100 m | 10.35 | ||
| 1st (h) | 4 × 100 m relay | 38.93 | ||||
| 2018 | Asian Games | Jakarta, Indonesia | bgcolor=gold | 1st | 200 m | 20.23 |
| 3rd | 4 × 400 m relay | 3:01.94 | ||||
| 2019 | Asian Championships | Doha, Qatar | bgcolor=silver | 2nd | 200 m | 20.55 |
| World Relays | Yokohama, Japan | – | 4 × 100 m relay | DQ | ||
| World Championships | Doha, Qatar | 22nd (sf) | 100 m | 10.28 | ||
| 24th (h) | 200 m | 20.46 | ||||
| 3rd (h) | 4 × 100 m relay | 37.78 | ||||
| 2021 | Olympic Games | Tokyo, Japan | 32nd (h) | 100 m | 10.22 | |
| 9th (h) | 4 × 100 m relay | 38.162 | ||||
| 2023 | World Championships | Budapest, Hungary | 5th | 4 × 100 m relay | 37.83 | |
| Asian Games | Hangzhou, China | 10th (sf) | 100 m | 10.22 | ||
| bgcolor=silver | 2nd | 4 × 100 m relay | 38.44 | |||
Outdoors