Jean Charles Léonard de Sismondi
（重定向自Sismondi）
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![Title page of Nouveaux principes d'économie politique](/Images/godic/202502/11/page1-220px-Sismondi_-_Nouveaux_Principes_d’économie_politique.djvu1549.jpg")
![De la richesse commerciale, 1803](/Images/godic/202502/11/lossy-page1-220px-Sismondi_-_De_la_richesse_commerciale,_1803_-_5763363.tif1549.jpg")
Jean Charles Léonard de Sismondi (a.k.a. Jean Charles Leonard Simonde de Sismondi) (French: [sismɔ̃di]; May 19, 1773 in Geneva – June 25, 1842 in Chêne-Bougeries, Canton of Geneva), whose real name was Simonde, was a historian and political economist, who is best known for his works on French and Italian history, and his economic ideas.