Cornovecchio (Lodigiano: Corvèch) is a comune (municipality) in the Province of Lodi in the Italian region Lombardy, located about 80 kilometres (50 mi) southeast of Milan and about 45 kilometres (28 mi) southeast of Lodi.

Cornovecchio borders the following municipalities: Pizzighettone, Maleo, Crotta d'Adda, Meleti, Corno Giovine, Caselle Landi.