The Fantasy Air Allegro is a Czech two seat, high wing, tricycle gear, single engine monoplane light-sport aircraft or microlight originally designed and built by Fantasy Air and later produced in the United States by Allegro LSA.

[1][4] The fuselage is constructed from Kevlar-reinforced fibreglass with steel tube reinforcement in the cockpit area.

The seating is for pilot and passenger in side-by-side configuration, sharing a centre-mounted control stick.

While the fin is fibreglass the horizontal stabilizer, elevator and adjustable trim tab mounted as a T-tail are all aluminum.

A glider-towing kit is optional which allows towing gliders up to 500 kg (1,102 lb) gross weight.