Montmédy (French pronunciation: [mɔ̃.me.di], German: Mittelberg) is a commune in the Meuse department in Grand Est in north-eastern France.

After Marville and Stenay had been occupied by the French, 30,000 soldiers, including King Louis XIV, attacked Montmédy, whilst 756 were defending it in 1657.

During the French Revolution in 1791, the fortress was the anticipated destination of King Louis XVI and his family in their unsuccessful attempt to escape from the growing radical republicanism of Paris.

The royal party never arrived, however, because they were discovered en route at Varennes and escorted back to the capital city.

Buildings, including a church dating back to the 17th century, can be found inside the citadel itself; it still is used as a place to live.