Treaty of Saint-Germain-en-Laye (1679) - established peace between France and the elector of Brandenburg at the end of the third of the Dutch Wars

Treaty of Saint-Germain-en-Laye (1632) - signed March 29, England returned Quebec to France after seizing control in 1629.

The Treaty of Saint-Germain may refer to one of a number of treaties signed at Saint-Germain-en-Laye, as follows:

Treaty of Saint-Germainen-Laye (1570) - terminated the first phase of the French Wars of Religion

Treaty of Saint-Germain-en-Laye (1919) - treaty between the Allies of World War I and the new republic of Austria