| Marta Lois | |
| Office: | Spokesperson of Sumar in the Congress of Deputies |
| Term Start: | 11 August 2023 |
| Term End: | 30 January 2024 |
| Predecessor: | Pablo Echenique (Unidas Podemos) |
| Successor: | Íñigo Errejón |
| Birth Date: | 1969 |
| Birth Place: | Vigo, Spain |
| Birthname: | Marta Irene Lois González |
| Nationality: | Spanish |
| Party: | Compostela Aberta (2015–present) Sumar (2023–present) |
| Alma Mater: | University of Santiago de Compostela |
| Office1: | Member of the Congress of Deputies |
| Office2: | Member of the Santiago de Compostela City Council |
| Termend1: | 30 January 2024 |
| Termstart1: | 17 August 2023 |
| Termend2: | 17 June 2023 |
| Termstart2: | 13 June 2015 |
| Constituency1: | A Coruña |
Marta Irene Lois González (born 1969) is a Spanish associate professor, political scientist and former politician of Sumar who served as its spokesperson in the Congress of Deputies between August 2023 and January 2024.[1] Later, in December 2023, she was selected as the platform's candidate for the 2024 Galician regional election.[2] After failing to obtain any seats for Sumar Galicia, she returned to university lecturing.[3]