The Courtray Design Biennial Interieur is a major international design exhibition for creative interior design that takes place once every two years in the Belgian city of Courtray. The first Interieur Design Biennale took place in 1968. The Biennale is organised by the Interieur Foundation. Several activities, such as TheYoungDesignersFair, Design at Work, lectures, Superieur, Exterieur etc. are part of it.