Claude de Thiard de Bissy (13 October 1721, Paris – 26 September 1810, Pierre-de-Bresse)[1] was a French soldier. He served his military career, rising to lieutenant-général des armées du roi in 1762 (the same day as his younger brother Henri, comte de Thiard) and fighting in the conquest of Franche-Comté and becoming governor of Languedoc and Auxonne.