| Matías Tellechea | |
| Fullname: | Matías Nicolás Tellechea Pérez |
| Birth Date: | 1992 9, df=y |
| Birth Place: | Maldonado, Uruguay |
| Height: | 1.80 m |
| Currentclub: | Atenas |
| Clubnumber: | 21 |
| Position: | Forward |
| Youthclubs1: | Atenas |
| Years1: | 2010 |
| Caps1: | 12 |
| Goals1: | 3 |
| Clubs1: | Atenas |
| Years2: | 2010–2011 |
| Caps2: | 0 |
| Goals2: | 0 |
| Clubs2: | River Plate Montevideo |
| Years3: | 2011–2012 |
| Caps3: | 25 |
| Goals3: | 3 |
| Clubs3: | Cerro Largo |
| Years4: | 2012–2013 |
| Caps4: | 0 |
| Goals4: | 0 |
| Clubs4: | Botafogo |
| Years5: | 2013 |
| Caps5: | – |
| Goals5: | – |
| Clubs5: | → Luziânia (loan) |
| Years6: | 2013–2015 |
| Caps6: | 30 |
| Goals6: | 1 |
| Clubs6: | Deportivo Maldonado |
| Years7: | 2015 |
| Caps7: | 14 |
| Goals7: | 1 |
| Clubs7: | → Cerro Largo (loan) |
| Years8: | 2015–2017 |
| Caps8: | 55 |
| Goals8: | 1 |
| Clubs8: | Cerro Largo |
| Years9: | 2018 |
| Caps9: | 17 |
| Goals9: | 1 |
| Clubs9: | Deportivo Maldonado |
| Years10: | 2019 |
| Caps10: | 27 |
| Goals10: | 3 |
| Clubs10: | Cerro Largo |
| Years11: | 2020 |
| Caps11: | 29 |
| Goals11: | 2 |
| Clubs11: | Deportivo Maldonado |
| Years12: | 2021 |
| Caps12: | 0 |
| Goals12: | 0 |
| Clubs12: | Lautaro de Buin |
| Years13: | 2021 |
| Caps13: | 7 |
| Goals13: | 0 |
| Clubs13: | Deportes Melipilla |
| Years14: | 2022–2023 |
| Caps14: | 32 |
| Goals14: | 0 |
| Clubs14: | Deportivo Maldonado |
| Years15: | 2024– |
| Caps15: | 4 |
| Goals15: | 0 |
| Clubs15: | Atenas |
| Club-Update: | 23 April 2024 |
Matías Nicolás Tellechea Pérez (born 21 September 1992) is a Uruguayan footballer who plays as a forward for Atenas de San Carlos.
Born in Maldonado, Uruguay, Tellechea started his career with Atenas de San Carlos and River Plate in his homeland. In 2011, he joined Cerro Largo, with whom he reached the fourth place in the 2011–12 Uruguayan Primera División, qualifying to the 2012 Copa Sudamericana. In August 2012, he moved to Brazil, signed with Botafogo and played on loan for Luziânia in both the 2013 Copa do Brasil and the Campeonato Brasiliense.
Back in Uruguay, he joined Deportivo Maldonado in 2013, playing for them until 2014. Later, he played for them in another three stints in 2018, 2020 and 2022–23. He also took part in the 2023 Copa Libertadores against Fortaleza.
Tellechea returned to Cerro Largo in 2015 until 2017. He rejoined them in 2019.
In March 2021, he moved to Chile and joined Lautaro de Buin in the Primera B, but the club couldn't play in any division due to regulation issues, switching to Primera División side Deportes Melipilla in the second half of the same year.
In 2024, Tellechea returned to Atenas de San Carlos.
Tellechea was a member of the Uruguay preliminary squad for the 2011 South American U20 Championship.