The Treaty of Versailles was a diplomatic agreement signed between Austria and France at the Palace of Versailles on 1 May 1757 during the Seven Years' War. It expanded on the 1756 First Treaty of Versailles, which had established the Franco-Austrian Alliance. It is thus commonly known as the Second Treaty of Versailles.

In the new treaty, France agreed to assist Austria in regaining the province of Silesia from Prussia in exchange for Austria ceding the Austrian Netherlands to France at the war's conclusion,^[1] the acquisition of which had long been a goal of the French state. Financial subsidies paid from France to Austria were continued, which confirmed a British fear about the depth of the alliance.

In the wake of the treaty, French troops moved to occupy key ports and settlements in the Austrian Netherlands such as Ostend and Nieuport, freeing up their Austrian garrisons to move east to attack Prussia.^[2] That particularly alarmed Great Britain, which had long sought to prevent the French moving into the Low Countries, but the treaty brought to an end the barrier which had existed for forty years.

The French intended to put a Bourbon monarch from the Spanish branch of the dynasty, Duke Philip of Parma, on the throne of a new puppet state in the Southern Netherlands. In addition it was agreed that the towns of Chimay, Ostend, Beaumont, Nieuport, Ypres, Furnes and Mons would all be ceded directly to France.^[3]

The treaty also served to confirm a planned partition of Prussia, which was to take place between Russia, Sweden and Saxony.

The terms were largely renounced by the subsequent Third Treaty of Versailles, as France and Austria were not able to achieve the swift victory over Prussia that they had envisaged, despite the assistance of Russia, Sweden and Saxony. Also, France was concerned that the war in Germany was drawing away troops and resources that needed to be directed against Great Britain, and the war had also prompted a financial crisis in Paris.^[4]

• France in the Seven Years' War