| Kai Matsuzaki 松崎 快 | |
| Birth Date: | 22 November 1997 |
| Height: | 1.72 m |
| Currentclub: | Shimizu S-Pulse |
| Clubnumber: | 19 |
| Position: | Winger |
| Youthclubs1: | Kawagoe Himawari SC |
| Youthyears2: | –2015 |
| Youthclubs2: | Omiya Ardija |
| Collegeyears1: | 2016–2019 |
| College1: | Toyo University |
| Years1: | 2020–2022 |
| Clubs1: | Mito HollyHock |
| Caps1: | 74 |
| Goals1: | 9 |
| Years2: | 2022–2023 |
| Clubs2: | Urawa Red Diamonds |
| Caps2: | 14 |
| Goals2: | 1 |
| Years3: | 2023 |
| Clubs3: | → Vegalta Sendai (loan) |
| Caps3: | 11 |
| Goals3: | 0 |
| Years4: | 2024– |
| Clubs4: | Shimizu S-Pulse |
| Caps4: | 14 |
| Goals4: | 2 |
| Club-Update: | 21:44, 27 April 2024 (UTC) |
is a Japanese professional footballer currently playing as a winger for club Shimizu S-Pulse.
| Club | Season | League | National Cup | League Cup | Other | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Division | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |||
| Japan | League | Emperor's Cup | J. League Cup | Other | Total | ||||||||
| Mito HollyHock | 2020 | J2 League | 33 | 1 | 0 | 0 | – | – | 33 | 1 | |||
| 2021 | J2 League | 41 | 8 | 1 | 0 | – | – | 42 | 8 | ||||
| Total | 74 | 9 | 1 | 0 | 0 | 0 | 0 | 0 | 75 | 9 | |||
| Urawa Reds | 2022 | J1 League | 11 | 1 | 2 | 0 | 2 | 0 | 4 | 0 | 19 | 1 | |
| 2023 | J1 League | 3 | 0 | 0 | 0 | 1 | 0 | – | 4 | 0 | |||
| Total | 14 | 1 | 2 | 0 | 3 | 0 | 4 | 0 | 23 | 1 | |||
| Vegalta Sendai (loan) | 2023 | J2 League | 11 | 0 | 0 | 0 | – | – | 11 | 0 | |||
| Shimizu S-Pulse | 2024 | J2 League | 11 | 1 | 0 | 0 | 1 | 0 | – | 12 | 1 | ||
| Career total | 110 | 11 | 3 | 0 | 4 | 0 | 4 | 0 | 121 | 11 | |||
Urawa Red Diamonds