The Abbey of Our Lady of Atlas (Arabic: دير سيدة الأطلس; French: Abbaye Notre-Dame de l'Atlas) is a Catholic monastery of Trappists, inaugurated on March 7, 1938, in Tibhirine, close to Médéa, in Algeria.

In 1843, Trappist monks of Aiguebelle Abbey built the Abbaye Notre-Dame de Staouëli [fr] at Staouéli in French Algeria, in order to train the population in modern agriculture techniques.

But in 1904 the monks left the country because of the difficulties to make the territory profitable and for fear of the French law on associations passed in 1901, which limited the rights of religious congregations.

During the war, the inhabitants of Tamesguida came down from the mountain for fear of unrest and settled down little by little around and under the protection of the monastery, which contributed to the development of the village of Tibhirine.

They bonded with their Muslim neighbours by teaching French, providing employment at the monastery's farm, and medicine, and clothes and shoes for the poor.

In 1984, monks renounced the status of abbey in order to become an independent priory, and Dom Christian de Chergé was elected prior.

When the Algerian Civil War broke out, "[t]hey chose to put their lives at risk out of solidarity with the local Muslims, who had nowhere to flee.

After the kidnappers left, the remaining monks attempted to contact the police, but found that the telephone lines had been cut.

The funeral Mass for the monks was celebrated in the Catholic Basilica of Notre Dame d'Afrique (Our Lady of Africa) in Algiers on Sunday, 2 June 1996.

You constitute the community of Our Lady of Atlas, and therefore are an autonomous Major Priory.”[5] The monks left the Fez location in March 2000 and moved into a new monastery near Midelt, Morocco, in buildings previously occupied by members of the Franciscan Missionary Sisters of the Immaculate Heart of Mary.