| Koki Otani 大谷 幸輝 | |
| Fullname: | Koki Otani |
| Birth Date: | 8 April 1989 |
| Birth Place: | Kumamoto, Japan |
| Currentclub: | Giravanz Kitakyushu |
| Clubnumber: | 31 |
| Position: | Goalkeeper |
| Youthyears1: | 2005–2007 |
| Youthclubs1: | Urawa Red Diamonds Youth |
| Years1: | 2008–2016 |
| Clubs1: | Urawa Red Diamonds |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 2014 |
| Clubs2: | → Giravanz Kitakyushu (loan) |
| Caps2: | 42 |
| Goals2: | 0 |
| Years3: | 2017–2020 |
| Clubs3: | Albirex Niigata |
| Caps3: | 79 |
| Goals3: | 0 |
| Years4: | 2021–2023 |
| Caps4: | 7 |
| Goals4: | 0 |
| Years5: | 2024- |
| Clubs5: | Giravanz Kitakyushu |
| Club-Update: | 27 December 2023 |
is a Japanese professional footballer who plays as a goalkeeper for J3 League club Giravanz Kitakyushu.
Koki was born in Kumamoto. He played for Urawa Reds' youth team.
Koki started his career at Urawa Reds.
Koki made his debut for Giravanz Kitakyushu on 2 March 2014 against Kyoto Sanga.[1]
Koki made his debut for Albirex against Yokohama F. Marinos on 18 March 2017.[2]
Koki made his debut for Consadole against Cerezo Osaka on 19 March 2022.[3]
| Club | Season | League | Cup | League Cup | Continental | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |||
| Japan | League | Emperor's Cup | J.League Cup | AFC | Total | ||||||||
| Giravanz Kitakyushu (loan) | 2014 | J2 League | 42 | 0 | 4 | 0 | – | – | 46 | 0 | |||
| Urawa Red Diamonds | 2015 | J1 League | 0 | 0 | 1 | 0 | 2 | 0 | 1 | 0 | 4 | 0 | |
| 2016 | 0 | 0 | 1 | 0 | 4 | 0 | 0 | 0 | 5 | 0 | |||
| Total | 0 | 0 | 2 | 0 | 6 | 0 | 1 | 0 | 9 | 0 | |||
| Albirex Niigata | 2017 | J1 League | 23 | 0 | 0 | 0 | 1 | 0 | – | 24 | 0 | ||
| 2018 | J2 League | 14 | 0 | 2 | 0 | 3 | 0 | – | 19 | 0 | |||
| 2019 | 42 | 0 | 0 | 0 | 0 | 0 | – | 42 | 0 | ||||
| 2020 | 0 | 0 | – | – | – | 0 | 0 | ||||||
| Total | 79 | 0 | 2 | 0 | 4 | 0 | 0 | 0 | 85 | 0 | |||
| Hokkaido Consadole Sapporo | 2021 | J1 League | 0 | 0 | 0 | 0 | 4 | 0 | – | 4 | 0 | ||
| 2022 | 4 | 0 | 2 | 0 | 1 | 0 | – | 7 | 0 | ||||
| 2023 | 3 | 0 | 3 | 0 | 2 | 0 | – | 8 | 0 | ||||
| Total | 7 | 0 | 5 | 0 | 7 | 0 | 0 | 0 | 19 | 0 | |||
| Career total | 128 | 0 | 13 | 0 | 17 | 0 | 1 | 0 | 159 | 0 | |||