Sara Matthieu is a Belgian politician and a Member of the European Parliament for The Greens/EFA since 2020. In the ninth legislature, she has been serving on the Committee on International Trade (INTA), and the Committee on Employment and Social Affairs (EMPL). In this capacity, she has been the parliament's co-rapporteur on minimum income. 

Before joining the European Parliament, Sara worked for the environmental organisation Naturpuunt and the Secretary of State of the Brussels Regional Government.