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In all the world, Касия (Kasia , Kasiya , Касия ) is a common principally female, but very seldom male first name. The first name Касия is characteristic of Poland, where it is a common female name, Ireland, where it is quite a rare feminine name, and Jamaica. In absolute terms, it most frequently occurs in Poland, India, and the United States. Much less frequently, Касия is the last name as well as the forename.
Адиева, Илиева, Зайнышева, and Байжуманова