The Astro 7 was a seven-cylinder radial aircraft engine built by Isotta Fraschini in the 1930s.

Isotta Fraschini engines powered many Italian airships and military aircraft during World War I, becoming one of the largest engine producers in Italy.

The Astro 7 C seven-cylinder radial engine failed to attract orders in any quantity and failed to give the company significant return on the development costs.

[1][2] The Astro 7 C was an unremarkable air-cooled radial engine with supercharger, which did allow reasonable power to be maintained at altitudes up to 4,000 m (13,000 ft), dependent on supercharger drive ratio.

[1] With few applications the Astro 7 C family was not produced in large quantities.