The Courtray Design Biennale Interieur is a major international design exhibition that takes place in Kortrijk, Belgium. The first Interieur Design Biennale took place in 1968. The Biennale is organised by the Biennale Interieur npo. During the fair, producers and designers present their innovating interior products to a broad cultural, commercial and professional audience. Over the years, the fair has introduced a number of side activities such as the YoungDesignersFair, Design at Work, Exterieur, lectures and debates.