Giampietro Campana (1808 – 10 October 1880), created marchese di Cavelli (1849), was an Italian art collector who assembled one of the nineteenth century's greatest collection of Greek and Roman sculpture and antiquities. The part of his collection of Hellenistic and Roman gold jewellery conserved in the Musée du Louvre warranted an exhibition devoted to it in 2005–06. He was an early collector of early Italian paintings, the so-called "primitives" of the fourteenth and fifteenth centuries, which were overlooked by his contemporaries. And like many collectors of his generation, he coveted Italian maiolica of the 15th and 16th centuries.