Joseph Vendryes (French: [vɑ̃dʁi]; 13 January 1875, Paris – 30 January 1960) was a French Celtic linguist. After studying with Antoine Meillet, he was chairman of Celtic languages and literature at the École Pratique des Hautes Études. He founded the journal Études Celtiques. He was a member of the Académie des Inscriptions et Belles-Lettres and a consultant with the International Auxiliary Language Association, which standardized and presented Interlingua.
Joseph Vendryes studied the phenomenon of dislocation.