Sonia Toneu is a Spanish visual artist based in Catalonia. Her artistic research focuses on abstraction, using painting, installation, and digital media as a means of proposing alternate realities to those we perceive. She completed a Higher Diploma in Visual Arts and Design for Mural Arts at the Escola Massana in Barcelona and holds a Master's degree in Digital Art, which she received in 2023. She has also studied Art History, Graphic Design, and Artistic Management.

Toneu has been selected as a finalist in several international painting competitions, including the Iluro Foundation Biennial (2015), the Ibercaja Prize (2015), and the Ricard Camí Prize (2015). She has also been selected for numerous artist residencies, such as Art Circle (Slovenia, 2019), Nautilus (Lanzarote, 2019), and GlogauAIR (Berlin, 2020).

Her works have been featured in over 30 group exhibitions at contemporary art galleries across Spain, as well as in international art fairs. Toneu has held solo exhibitions in Spain and participated in several contemporary art fairs in both Spain and Europe. In recent years, she has focused on large-scale artistic installations, murals, and live painting performances.