The Duruthy cave is a prehistoric rock shelter site located in the commune of Sorde-l'Abbaye, in the French department of Landes.

Occupied in the Magdalenian, Azilian, Bronze Age, and Chalcolithic, it is renowned for having delivered human remains associated with bear and lion teeth.

It has been classified as a historical monument since 13 April 1962.

The yellow silt towards the bottom of the filling yielded human remains belonging to an adult individual, called "Sorde 1". They are associated with 55 canines of cave bears (Ursus spelaeus) and cave lion (Felis spelea), some breakthroughs and/or engraved. The position of these canines shows that they are the elements of a collar. On this layer was a human skull. In 1874 Lartet and Chaplain-Duparc found a burial in the cave. The same year, Ernest-Théodore Hamy published his study of these human remains.