| Kobayashi Yuki | ||
| Birth Date | 1992-04-24 (age 34) | |
| Birth Place | Tokyo | |
| Height | 182 cm | |
| Weight | 72 kg | |
| Position | Midfielder | |
| Club | Tampines Rovers | |
| Number | 49 | |
| Club | ||
| 2010-2012 | Tokyo Verdy | |
| 2012-2016 | Jubilo Iwata | |
| 2016-2019 | Heerenveen | |
| 2019-2020 | Waasland-Beveren | |
| 2020-2021 | Al-Khor | |
| 2021 | Seoul E-Land | |
| 2022 | Gangwon | |
| 2022 | Vissel Kobe | |
| 2023-2024 | Hokkaido Consadole Sapporo | |
| 2025 | Iwate Grulla Morioka | |
| 2026- | Tampines Rovers | |
| National Team | ||
| 2016-2019 | Japan | |
| Club Statistics | |||||
| Season | Club | League | Game | Goal | |
| 2010 | Tokyo Verdy | J2 League | 4 | 0 | |
| 2011 | Tokyo Verdy | J2 League | 34 | 2 | |
| 2012 | Tokyo Verdy | J2 League | 24 | 4 | |
| 2012 | Jubilo Iwata | J1 League | 11 | 0 | |
| 2013 | Jubilo Iwata | J1 League | 1 | 0 | |
| 2014 | Jubilo Iwata | J2 League | 36 | 2 | |
| 2015 | Jubilo Iwata | J2 League | 40 | 6 | |
| 2016 | Jubilo Iwata | J1 League | 24 | 5 | |
| 2016-17 | Heerenveen | Eredivisie | 30 | 1 | |
| 2017-18 | Heerenveen | Eredivisie | 30 | 1 | |
| 2018-19 | Heerenveen | Eredivisie | 29 | 0 | |
| 2019-20 | Waasland-Beveren | First Division A | 20 | 2 | |
| 2020-21 | Waasland-Beveren | First Division A | 1 | 0 | |
| 2020-21 | Al-Khor | Stars League | 16 | 0 | |
| 2021 | Seoul E-Land | K League 2 | 8 | 0 | |
| 2022 | Gangwon | K League 1 | 12 | 0 | |
| 2022 | Vissel Kobe | J1 League | 9 | 3 | |
| 2023 | Hokkaido Consadole Sapporo | J1 League | 21 | 3 | |
| 2024 | Hokkaido Consadole Sapporo | J1 League | 19 | 0 | |
| 2025 | Iwate Grulla Morioka | Football League | 24 | 5 | |
| 2025-26 | Tampines Rovers | Premier League | 16 | 2 | |
| 2026-27 | Tampines Rovers | Premier League | |||
| National Team Statistics | ||||
| Season | Team | Game | Goal | |
| 2016 | Japan | 2 | 1 | |
| 2017 | Japan | 2 | 0 | |
| 2018 | Japan | 0 | 0 | |
| 2019 | Japan | 4 | 0 | |
| Total | 8 | 1 | ||