Giulio Quaglio the Younger (Laino, 1668 – 1751) was an Italian painter. He was part of the large Quaglio pedigree of Italian artists involved in architecture, indoor fresco decoration, and scenography (stage design) for the court theaters. He was born in Como. Giulio II was involved in fresco decoration in the Friuli, including for the chapel of the Monte di Pietà, at Udine.