Grotte de Cussac, Paleolithic cave with engravings in Le Buisson-de-Cadouin, France.

Grotte de Cussac is a 1.6-kilometre cave gallery on the right bank of the Bélingou, entered through a gated opening in a tan rock face. Its walls bear over 150 Gravettian engravings, almost all incised with stone or bone tools; the largest, a bison on the Grand Panneau 310 metres from the entrance, measures 4 metres. Fingers traced lines in floor clay, and red dots are the only pigment.

Speleologists Marc Delluc and Fabrice Massoulier found the cave on 16 September 2000; the Ministry of Culture announced it on 8 December 2000. It was classified as a historical monument on 3 July 2002. The engravings date to the Gravettian, about 25,000 years ago.

The cave's local nickname, "grotte des Amoureux" (cave of lovers), predates its 2000 discovery. Inside, at least five Gravettian individuals — four adults and a teenager, carbon-dated to about 25,000 years — lie in three loci along the decorated gallery, close to the engravings. Visitors cannot enter, but the Buisson-de-Cadouin displays facsimiles of the discovery panel and of the hollow where a skeleton was found.

The cave is not open to regular visitors as ongoing scientific research continues there. Those interested in learning more can contact local authorities or regional museums, which often provide information about current studies and potential future public access.

The cave's entrance sits on a travertine terrace above the Bélingou stream, and the decorated gallery is the fossil segment of an underground river network whose active part still emerges there. The site is also called "grotte des Amoureux" in the local vernacular. Two facsimiles of the discovery panel and of the hollow holding a skeleton are displayed at Le Buisson-de-Cadouin.