What is the name of the order of monks in Walter M. Miller Jr.'s 'A Canticle for Leibowitz'?

The order of monks in Walter M. Miller Jr.’s A Canticle for Leibowitz is the Albertian Order of Leibowitz.

The order is founded by Isaac Edward Leibowitz, a Jewish electrical engineer who survives the nuclear catastrophe known as the Flame Deluge. After the war, mobs associated with the Age of Simplification destroy books and persecute educated people. Leibowitz joins a monastery, becomes a priest, and dedicates his life to preserving fragments of scientific knowledge.

With the Church’s permission, he establishes the Albertian Order of Leibowitz in the desert of the American Southwest. Its monks protect, copy, memorize, and study the surviving documents—called the Memorabilia—even when they no longer understand the science those texts contain.

The novel follows the order across thousands of years as civilization rebuilds, rediscovers science, and eventually develops nuclear technology again. The order’s mission therefore becomes both an act of preservation and a warning about humanity’s repeated cycle of technological progress and destruction. Franciscan, Jesuit, and Benedictine are real Catholic orders, but none is the order named in Miller’s novel.