The Boulevards of the Marshals (French: Boulevards des Maréchaux) are a collection of thoroughfares that encircle the city of Paris, France, just inside its city limits. Most bear the name of a marshal of the First French Empire (1804–1814) who served under Napoleon I. The Île-de-France tramway Lines 3a and 3b today run on the Boulevards of the Marshals.
The demolition of the Thiers wall during the 1920s allowed for the creation of this ring of boulevards surrounding the city, using the land just inside the wall itself. Later, the Boulevard Périphérique, a short distance 'outboard' of the Boulevards of the Marshals, was built on the site of the Thiers wall itself, though it is more like a motorway than a wide boulevard.