Mourenx (French pronunciation: [muʁɛ̃ks]; Occitan: Morencs) is a commune in the Pyrénées-Atlantiques department in south-western France.

A secular abbey existed, belonging to the Viscount of Béarn.

A new town was constructed in 1958 to provide accommodation for the workers required at the gas processing plant.

[5] The town was designed by architects and urbanists Coulon, Douillet and Maneval.

[5] The well-known French sociologist Henri Lefebvre carried out a study of Mourenx and its inhabitants at the time of its creation.