(1500 - 5 March 1572) was an Italian painter and architect. His brothers Vincenzo Campi and Antonio Campi were also renowned painters.
The eldest of a family prominent painters, Campi was born at Cremona. His father Galeazzo (1475-1536) taught him the first lessons in art.
In 1522, in Mantua, he studied painting, architecture, and modelling under Giulio Romano. He visited Rome, became an ardent student of the antique, and like Bernardino e distantly related to him e he combined a Lombard and Roman traditions. He collaborated on some works with Camillo Boccaccino, the son of Boccaccio Boccaccino, with whom Campi may also have received training.
Campi is called the "Ludovico Carracci of Cremona" although he preceded the founder of the Eclectics. When but twenty-seven Giulio executed for the church of Sant' Abbondio his masterpiece, a Virgin and Child with Sts. Celsus and Nazarus, a decoration masterly in the freedom of its drawing and in the splendour of its colour. His numerous paintings are grandly and reverently conceived, freely drawn, vigorously coloured, lofty in style, and broadly handled. He was animated in all his work by a deep piety. Numerous of his fresco works are housed in churches of Cremona, Mantua, Milan and in the church of Saint Margaret's, in his native town. Among his chief works are the Descent from the Cross (S. Sigismondo) at Cremona, and the frescoes in the dome of S. Girolamo at Mantua. An altar-piece in S. Sigismondo and his Labours of Hercules were engraved by the celebrated Ghiso, il Mantovano.
He died in Cremona in 1572.