Sadi Carnot may refer to:
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Nicolas Léonard Sadi Carnot
''Sous-lieutenant'' Nicolas Léonard Sadi Carnot (; 1 June 1796 – 24 August 1832) was a French mechanical engineer in the French Army, military scientist and physicist, and often described as the "father of thermodynamics". He published onl ...
(1796–1832), French physicist, the ''father of thermodynamics''
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Marie François Sadi Carnot (1837–1894), president of the third French Republic, and nephew of Nicolas Léonard Sadi Carnot
{{hndis, Carnot, Sadi