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Surname Erdene (Erdene , Эрдэнэ , Ердене ) , around the globe, is quite a common cognomen. The cognomen Erdene is characteristic of Mongolia, where it is a common surname, Czechia, where it is a rare surname, and Australia, where it is a very rare surname. In absolute terms, it most frequently occurs in Mongolia, China, and the United States. Likewise, Erdene is the forename as well as the last name.