The DENIS Archive is an implementation of the third release of the DENIS Survey Catalogue. DENIS (DEep Near-Infrared Survey) is a deep astronomical survey of the Southern Sky in two near-infrared bands (J at 1.25 μm and K at 2.16 μm) and one optical band (I at 0.82 μm) simultaneously, conducted by a European consortium, using a one meter telescope (ESO, La Silla). The survey started in 1996 and operations at La Silla have been completed on 9 Sept. 2001.