| Marcela Cubillos | |
| Birth Date: | 1967 2, df=y |
| Birth Place: | Santiago, Chile |
| Office: | Member of the Constitutional Convention |
| Constituency: | 11th District |
| Term Start: | 4 July 2021 |
| Term End: | 4 July 2022 |
| Office1: | Minister of Education |
| Term Start1: | 9 August 2018 |
| Term End1: | 28 February 2020 |
| Predecessor1: | Gerardo Varela |
| Successor1: | Raúl Figueroa |
| Office2: | Minister for the Environment |
| Term Start2: | 11 March 2018 |
| Term End2: | 9 August 2018 |
| Predecessor2: | Marcelo Mena |
| Successor2: | Carolina Schmidt |
| Office3: | Member of the Chamber of Deputies of Chile |
| Constituency3: | 21st District |
| Term Start3: | 11 March 2002 |
| Term End3: | 11 March 2010 |
| Predecessor3: | Alberto Espina |
| Successor3: | Marcela Sabat |
| Party: | Unión Demócrata Independiente (UDI) |
| Occupation: | Politician |
| Profession: | Lawyer |
| Parents: | Hernán Cubillos Marcela Sigall |
| Spouse: | José Antonio Silva Andrés Allamand[1] [2] [3] |
| Children: | Three |
| Relatives: | Felipe Cubillos (brother) |
Marcela Cubillos Sigall (born 2 February 1967) is a Chilean politician and lawyer, militant from Unión Demócrata Independiente (UDI).[4] She was Minister of State in Education and Environment[5] [6] portfolios from 2018 to 2020, during the second government of Sebastián Piñera (2018–2022).
Cubillos Sigall studied Law at the Pontificia Universidad Católica de Chile.[7]