Jean Ado Baltus (May 25, 1918 - September 17, 1990) was a Belgian architect, draughtsman, designer, and painter. His father, Georges Balthus (1874 - 1967), was also a painter who had studied and taught art in France, Italy, and Scotland, while his mother, Bertha, was the daughter of German sculptor Adolf von Hildebrand (1847 - 1921). The younger Balthus studied at the Royal Academy of Fine Arts in Brussels, completing his studies in 1943. In his younger years, he focused on sketches of trains, military vehicles, and automobiles, and later in his career shifted focus to landscapes, especially of the Italian countryside. His interest in technical subjects also served him well as an architect and restorer of historical buildings, including the Galerie Ravenstein and Palais d’Egmont. He served as the Head Architect for the 1958 Expo (World's Fair) in Brussels and was the director of the Academy of Visual Arts in Etterbeek.