Cavenago d'Adda (Lodigiano: Cavenàgh) is a comune (municipality) in the Province of Lodi in the Italian region Lombardy, located about 40 kilometres (25 mi) southeast of Milan and about 7 kilometres (4 mi) southeast of Lodi.

Cavenago d'Adda borders the following municipalities: Corte Palasio, Abbadia Cerreto, Casaletto Ceredano, Credera Rubbiano, San Martino in Strada, Turano Lodigiano, Mairago, Ossago Lodigiano.

Already populated in ancient Roman times, in the Middle Ages the area of Cavenago d'Adda belonged to the bishop of Lodi (10th century), and was later a fief of the family of Fissiraga (1297–1482), the Bocconi of Mozzanica, and finally of the Cavenaghi Clerici.

In 1869 the municipality of Cavenago d'Adda received the territories of the former communes of Caviaga and Soltarico.

After World War II, in the hamlet of Caviaga AGIP discovered large reserves of natural gas.