Aeritalia was an aerospace engineering corporation based in Italy. It was formed out of the merger of two aviation companies, Fiat Aviazione and Aerfer, in 1969.

Fiat Aviazione was an Italian aircraft manufacturer, at one time part of the Fiat group, focused mainly on military aviation. After World War I, Fiat consolidated several Italian small aircraft manufacturers, like Pomilio and Ansaldo. Most famous were the Fiat biplane fighter aircraft of the 1930s, the Fiat CR.32 and the Fiat CR.42. Other notable designs were the fighters CR.20, G.50, G.55 and a bomber, the Fiat BR.20. In the 1950s, the company designed the G.91 light ground attack plane.