Diana Riba i Giner is a Catalan politician from Spain and Member of the European Parliament for The Greens/EFA since 2019. In the ninth legislative term, she served as a member of the Committee on Culture and Education (CULT), the Committee on Civil Liberties, Justice and Home Affairs (LIBE), as well as the Committee on Women’s Rights and Gender Equality (FEMM).

Before opening her own bookshop, she worked at the "La Caixa" Foundation, where she coordinated conferences on cinema and literature that were held in Barcelona.