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Cognomen Janež (Aneis , Janež ) , in all the world, is a rare last name. The cognomen Janež is habitual in Southern Europe, particularly Slovenia, where it is quite a rare surname, Croatia, where it is a rare surname, and Portugal. Measured by absolute frequency, it is commonest in Egypt, Slovenia, and Portugal. Likewise, Janež is the forename as well as the last name.