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Cognomen Ansia (Ansia , Anxia , Anxius) , in all the world, is a rare family name. The last name Ansia is characteristic of Belgium, where it is a rare surname, Spain, where it is a very rare surname, and Netherlands. Measured by absolute frequency, it is commonest in India, Spain, and China. More prevalently, Ansia is the forename as well as the last name.