| Mariela Fincheira | |
| Birth Date: | 1983 9, df=y |
| Birth Place: | Temuco, Chile |
| Office: | Member of the Constitutional Council |
| Constituency: | La Araucanía |
| Term Start: | 7 June 2023 |
| Term End: | 7 November 2023 |
| Party: | Republican Party |
| Occupation: | Politician |
| Parents: | Fernando Fincheira Mariela Massardo |
| Spouse: | Patrick Casanova |
Mariela Fincheira Massardo (born 4 September 1983) is a Chilean politician who served in the Constitutional Council.[1] [2]