Coustouges (French pronunciation: [kustuʒ] ⓘ; Catalan: Costoja) is a commune in the Pyrénées-Orientales department in southern France.

Inhabitants are called Coustougiens (male) or Coustougiennes (female).

Coustouges is located in the canton of Le Canigou and in the arrondissement of Céret.

Coustouges is the second most southerly commune of mainland France, after Lamanère.

Coustouges was a dependency of the Abbey of Arles-sur-Tech from 988 until the French Revolution.