The Treaty of Fontainebleau ends the War of the Sixth Coalition against Napoleon Bonaparte, and forces him to abdicate unconditionally for the first time.

The Treaty of Fontainebleau was an agreement established in Fontainebleau, France, on 11 April 1814 between Napoleon and representatives of Austria, Russia and Prussia. The treaty was signed in Paris on 11 April by the plenipotentiaries of both sides and ratified by Napoleon on 13 April. With this treaty, the allies ended Napoleon's rule as emperor of the French and sent him into exile on Elba.