| Matej Grešák | |
| Fullname: | Matej Grešák |
| Height: | 1.75m |
| Birth Date: | 31 May 1999 |
| Birth Place: | Tulčík, Slovakia |
| Currentclub: | Železiarne Podbrezová |
| Clubnumber: | 14 |
| Position: | Midfielder |
| Youthyears1: | –2011 |
| Youthclubs1: | TJ Družstevník Tulčík |
| Youthyears2: | 2011–2013 |
| Youthclubs2: | FAMT Prešov |
| Youthyears3: | 2013–2016 |
| Youthclubs3: | Tatran Prešov |
| Years1: | 2016–2018 |
| Clubs1: | Tatran Prešov |
| Caps1: | 11 |
| Goals1: | 0 |
| Years2: | 2018–2020 |
| Clubs2: | Poprad |
| Caps2: | 27 |
| Goals2: | 4 |
| Years3: | 2021– |
| Caps3: | 84 |
| Goals3: | 3 |
| Nationalyears1: | 2016–2017 |
| Nationalcaps1: | 9 |
| Nationalgoals1: | 4 |
| Nationalyears2: | 2018 |
| Nationalcaps2: | 2 |
| Nationalgoals2: | 0 |
| Club-Update: | 26 June 2024 |
Matej Grešák (born 31 May 1999) is a Slovak professional footballer who plays as a midfielder for Železiarne Podbrezová.
Grešák made his Fortuna Liga debut for Tatran Prešov[1] against ŽP Šport Podbrezová on 10 December 2016.