The Orchestre National de Lille is a French orchestra based in Lille. Its principal concert venue is the Auditorium du Nouveau Siècle, since 2003. The precursor ensemble of the orchestra was the Orchestre de l'ORTF de Lille, which was made defunct in 1974. In 1976, through the actions of the Région Nord-Pas-de-Calais and conductor Jean-Claude Casadesus, the orchestra was reformed as the Orchestre philharmonique de Lille. In 1980, with government sponsorship, the orchestra took its current name, the Orchestre National de Lille.