Aldo van Eyck (16 March 1918 – 14 January 1999) was an architect from the Netherlands. He was one of the most influential protagonists of the architectural movement Structuralism.
A member of CIAM and then in 1954 a co-founder of "Team 10", Van Eyck lectured throughout Europe and northern America propounding the need to reject Functionalism and attacking the lack of originality in most post-war Modernism. Van Eyck's position as co-editor of the Dutch magazine Forum helped publicize the "Team 10" call for a return to humanism within architectural design.
Van Eyck received the RIBA Royal Gold Medal in 1990.