Vouziers (French pronunciation: [vuzje] ⓘ) is a commune of the Ardennes department, northern France.

The river Aisne flows through Vouziers, doubled by a branch of the "canal des Ardennes".

The town lies between the Forest of Argonne, the pre-Ardennes, and Champagne, and near the Ardennes Massif (dense woodland).

It is not far from Charleville-Mézières, Sedan (the largest medieval castle in Europe), Rocroi, Reims (where the kings of France were crowned), Châlons-en-Champagne, and Varennes-en-Argonne (where Louis XVI was arrested during the French Revolution).

The population data in the table and graph below refer to the commune of Vouziers proper, in its geography at the given years.