Vaprio d'Adda (Milanese: Vaver; Bergamasque: Aer; locally Vavar) is a comune (municipality) in the Metropolitan City of Milan in the Italian region Lombardy, about 30 kilometres (19 mi) northeast of Milan.

Vaprio d'Adda borders the following municipalities: Trezzo sull'Adda, Capriate San Gervasio, Grezzago, Canonica d'Adda, Pozzo d'Adda, Cassano d'Adda, Fara Gera d'Adda.

In 1799, Austrian and Russian troops under the guidance of Russian Field Marshal Suvorov inflicted a serious defeat on French forces here at the Battle of Cassano.

It was during the Great French War.

This article on a location in the Province of Milan is a stub.