Mandaeans are a religious grouping that in recent years was centred in Iraq until the war there dispersed them across the world, leaving just a few thousands in their original homeland. Efforts to resettle them as a single group have failed, putting the continued existence of this religious minority seriously at risk.
Their place in this work is mainly due to the views of the prolific Italian writer, Mario Pincherle, who has advocated the radical view that the Mandaeans are the last remnants of the Atlanteans . One website(a) goes even further suggesting that the Mandaeans have some knowledge of the secret behind the UFO mystery. A more recent article studies this in greater depth(b).
>(a) https://forum.davidicke.com/showthread.php?t=72447 (Link broken March 2020)<
Mario Pincherle (1919-2012) was born in Bologna, Italy(c) where he qualified as an engineer. He studied the classical writers and in due course became an archaeologist and a poet. He was also the writer of popular but somewhat controversial books on ancient history and religion.
In collaboration with Luigi Palazzini-Finetti he wrote a book  that envisaged the Atlantis story as an allegory of Eden wrapped in the trappings of the Akkadian Empire of Sargon. He also wrote a related book  about Sargon, the Akkadian ruler, and more recently a work  on the Mandaeans of Iraq who he claims are remnants of the Atlanteans.
Unfortunately, most of his writings and his website(a) are in Italian only. However, one excerpt, in English, from his book, La Grande Piramide , is available(b) and offers an interesting theory on the installation of the huge granite slabs over the King’s Chamber in the Great Pyramid at Giza.
Iraq was been given little attention by early Atlantis hunters until the 16th-century Spanish historian Gonzalo Fernandez Oviedo y Valdes (1478-1557) suggested Iraq as the location of Atlantis, whose inhabitants fled to the Americas when their country was inundated. However, it took another four hundred years before the discovery of the advanced civilisation of Sumeria situated in central Iraq began to generate interest in the possibility of Sumeria being Atlantean and the ‘cradle of civilisation’.
Mario Pincherle considers the Mandaeans of southern Iraq to be descendants of the original Atlanteans.
Leon Elshout associates the story of Atlantis with Iraq in a brief blog(a).