The Fort de la Chartreuse, which dominates the Amercœur neighborhood of Liège in Belgium, was built between 1817 and 1823 to defend the city.

The fort is built on a strategic height that dominates the valley of the Meuse, which had been occupied by a Carthusian (Ordre des Chartreux) monastery until the French Revolution.

The fort was built by the Dutch, who at the time administered southern Belgium.

After the Belgian Revolution, the Kingdom of Belgium used Fort de la Chartreuse as a barracks for the Fortified Position of Liège, having built twelve new forts around the city in the late 19th century as part of the country's overall National Redoubt.

The greater part of the fort occupies a green space that is being reforested.