- Role: Fighter
- Dimentions: Wingspan 10.54 m, length 9.10 m, height 3.03 m
- Engine: 1 x Gnome Rhone 14N-25 (1080 hp)
- Armament : 4 x 7,50 mm MAC 1934 machine guns, 2 x 20 mm HISPANO 404machine guns
- Crew: 1
- Number in service: 9
- Country of production: France
- Years in service: 1939 – 1941
The Hellenic Air Force ordered twenty-five aircraft in September 1939. Due to the invasion in France only nine aircraft were delivered. These equipped the 24th Squadron, based in Eleusis and tasked with the defense of Athens. The MB.151 were used mainly for training, as their performance was deemed rather inadequate. Due to lack of spare parts and their small number, the MB.151 were unable to have an impact in the Greek-Italian war. The MB.151 were painted in the standard French camouflage of the period and brought roundels on the fuselage and lower surfaces of the wings.
