| María Teresa Castañón | |
| Birth Date: | 1978 10, df=y |
| Birth Place: | Punta Arenas, Chile |
| Office: | Intendant of the Magallanes Region and the Chilean Antarctic |
| Term Start: | 11 July 2018 |
| Term End: | 12 February 2019 |
| Predecessor: | Christian Matheson Villán |
| Successor: | José Fernández Dübrock |
| Party: | Renovación Nacional |
| Occupation: | Politician |
| Profession: | Social worker |
María Teresa Castañón Silva (born 27 October 1978) is a Chilean politician who served as councillor of Punta Arenas and as intendant of the Magallanes Region and the Chilean Antarctic Territory.
In 2021, she run as candidate for the Constitutional Convention[1] for the 28th District.[2] [3]