Blieux (French pronunciation: [blijø]; Occitan: Blieus) is a rural commune in the Alpes-de-Haute-Provence department in the Provence-Alpes-Côte d'Azur region in Southeastern France.

[3] Much later, during the French Revolution, records show that the residents of Blieux had created a political club (patriotic society), which was very common at the time.

[5] By contrast, Charles Rostaing argues that the name derives from the pre-Indo-European root word, *BL, meaning 'mountain in the form of a spur'.

The village is located at an altitude of 950m,[3] in the valley formed by a tributary of the river Asse, known as the 'Asse de Blieux'.

With the exception of those that have been totally abandoned, Blieux is one of the communities in the Alpes-de-Haute-Provence department that has experienced the greatest population decline from the mid-19th to the mid-20th centuries.