The G. 91 attack aircraft is a lightweight attack aircraft developed by the Italian company Fiat in the 1950s at the request of the North Atlantic Treaty Organization.

The G. 91 attack aircraft was Italy's first self-developed jet fighter after World War II. Its appearance resembles the American F-86D fighter jet, with excellent flight maneuverability and easy maintenance. It can perform various tasks such as air combat and ground attack. The Italian Air Force's tricolor arrow flight demonstration team has used the G.91 as a demonstration aircraft.