Le Perthus[3] (French: [lə pɛʁtys] ⓘ, Catalan: El Pertús, IPA: [əl pəɾˈtus]) is a commune in the Pyrénées-Orientales department in southern France.

Le Perthus is situated in the canton of Vallespir-Albères and the arrondissement of Céret, in the historical region of Vallespir, on the borders with Catalonia, Spain.

Its contiguous Spanish twin town, Els Límits (a parish of the commune of La Jonquera, in the Province of Girona), is situated in the east and south side of the urban area.

This time, small parts of territory only were taken from Les Cluses and L'Albère, and the village of Le Perthus once again became a commune on 29 April 1851.

[9] In the 20th century Le Perthus was the site of a camp housing Republican escapees from Spain at the end of the Spanish Civil War.