Pierre Chevalier (24 April 1905 – 4 December 2001) was a well-known caver and mountaineer from France, with many alpine ascents and cave explorations to his credit.

With Fernand Petzl, Charles Petit-Didier and others, Chevalier completed explorations that connected four entrances (Trou du Glaz, Guiers Mort, P40 and Grotte Annette) and established the Dent de Crolles as the deepest cave system in the world (-658m).

The exploration of Dent de Crolles demonstrated outstanding commitment and perseverance in the face of physical, technological and political adversity.

They also treated the cave system within the Dent de Crolles massif as a single project, and persisted in explorations until most of its vertical range was realized.

In 1948 Chevalier published Escalades souterraines, detailing twelve years of explorations within the Dent de Crolles cave system.