San Giacomo degli Italiani (once the church of San Giacomo dei Pisani) is a church located on Via Depretis in Naples, Italy. First built in 1238, in the Swabian era, and given in gratitude to merchants from the Republic of Pisa, who had recently been victorious in a battle against a Saracen navy. At the beginning of the 15th century the church was turned over to the knights of the Order of the Spade (Ordine della Spada). Subsequently circa 1575, the church and the order of the Spada was forbidden to carry out their investitures by the viceroy Íñigo López de Hurtado de Mendoza, and the ceremonies were moved to the San Giacomo degli Spagnoli.