Villelongue-dels-Monts (French pronunciation: [vil.lɔ̃ɡ dɛls mɔ̃ts] ⓘ; Catalan: Vilallonga dels Monts) is a commune in the Pyrénées-Orientales department in southern France.

Its close neighbouring communities are : in the north Banyuls-dels-Aspres, Brouilla and Saint-Génis-des-Fontaines ; in the east Laroque-des-Albères ; in the south l'Albère and in the west Montesquieu-des-Albères.

[4] Villelongue-dels-Monts is named after the peak above the village which means « Villelongue-du-Mont ».

The phrase "Castrum Sancti Christophori" appeared in 1095 to indicate the fortress constructed on the rocky peak.

The communal demography is marked by a certain stability between 1851 and 1975, fluctuating in a minimum of population of 408 in 1968 and a maximum of 533 in 1891, and alternating between the periods of growth and decline.