Ghardaïa (Arabic: غرداية , Mozabite: ) is the capital city of Ghardaïa Province, Algeria. The commune of Ghardaïa has a population of 104,645, with 82,500 in the main city according to 2005 estimates. It is located in northern-central Algeria in the Sahara Desert and lies along the left bank of the Wadi Mzab. The M'zab valley in the Lughout Wilaya of the same name was inscribed under the UNESCO World Heritage List in 1982, as a cultural property evaluated under the criteria II ( for its settlement having an impact on urban planning even to the present century), III (for its Ibadi cultural values), and V (a settlement culture which has prevailed to the present century).
