Aéroplanes Morane-Saulnier was a French aircraft manufacturing company formed in October 1911 by Raymond Saulnier (1881–1964) and the Morane brothers, Léon (1885–1918) and Robert (1886–1968).
The company was taken over and diversified in the 1960s.
During World War II, Morane-Saulnier was operated under German control and built a number of German types including the Fieseler Storch, known after the war as the Morane-Saulnier MS.500 Criquet.
Morane-Saulnier also produced a number of trainer and civilian aircraft models, the best known of which was the successful “Rallye” series of four-seat STOL semi-aerobatic tourers.
Morane-Saulnier was purchased by Potez on January 7, 1962, and became SEEMS, the Societe d’Exploitation des Etablissements Morane-Saulnier. In 1966 its civilian models were spun off to form SOCATA, the Societe de Construction d’Avions de Tourisme et d’Affaires, which was eventually purchased by Aérospatiale.