| Thierry Kassi | |
| Fullname: | Kouakou Thierry Mathias Kassi |
| Birth Date: | 1 March 2000 |
| Height: | 1.80 m |
| Position: | Forward |
| Currentclub: | ASEC Mimosas |
| Clubnumber: | 27 |
| Years1: | 2016–2017 |
| Years2: | 2017–2018 |
| Clubs2: | AS Tanda |
| Years3: | 2018–2019 |
| Clubs3: | SC Gagnoa |
| Years4: | 2019–2020 |
| Clubs4: | Issia Wazi FC |
| Years5: | 2020–2022 |
| Clubs5: | Olympique Safi |
| Years6: | 2022– |
| Clubs6: | ASEC Mimosas |
| Nationalyears1: | 2017– |
| Nationalteam1: | Ivory Coast |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Club-Update: | 11:44, 1 March 2019 (UTC) |
| Nationalteam-Update: | 11:44, 1 March 2019 (UTC) |
Kouakou Thierry Mathias Kassi (born 1 March 2000) is an Ivorian professional footballer who plays as a forward for ASEC Mimosas.