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Cognomen Ayache (عياش , Ayache , Айяш ) , in all the world, is a common family name. The surname Ayache is habitual in Western Asia, particularly Palestinian Territory, where it is a common surname, Jordan, where it is quite a common surname, and Lebanon (explore the name in all countries). Measured by absolute frequency, this name is the most popular in Algeria, Jordan, and Palestinian Territory. Much less frequently, Ayache is the forename as well as the last name.