Société d'Aviation Letord was a French aircraft manufacturing company that was formed in the early 1910s by the French aviation industrialist Émile-Louis Letord. It manufactured a number of military aircraft during the First World War.^[1]

The company was formed in the early 1910s by the French aviation industrialist Émile-Louis Letord, (1883-1971). It produced a number of twin-engined biplanes for the French military during World War I.^[1]

• Let.1 - reconnaissance biplane^[1]
• Let.2 - reconnaissance biplane^[1]
• Let.3 - twin-engined bomber biplane^[1]
• Let.4 - twin-engined reconnaissance biplane^[1]
• Let.5 - twin-engined bomber biplane^[1]
• Let.6 - escort fighter^[1]
• Let.7 - twin-engined bomber biplane^[1]
• Let.9 - twin-engined night bomber biplane ^[1]

• Émile-Louis Letord