| Mario Vargas Vidal | |
| Birth Date: | 1963 2, df=y |
| Birth Place: | Osorno, Chile |
| Office: | Member of the Constitutional Convention |
| Constituency: | 25th District |
| Term Start: | 4 July 2021 |
| Term End: | 4 July 2022 |
| Party: | Socialist Party |
| Occupation: | Constituent |
Mario Rubén Vargas Vidal[1] (born 7 February 1963) is a Chilean biologist who was elected as a member of the Chilean Constitutional Convention.