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Last name Prohaska (Prohaska
, Прохаска
, Прохазка
) , in all the world, is quite a rare surname. The last name Prohaska is habitual in Austria, where it is quite a rare surname, Croatia, and Serbia. In absolute terms, it most frequently occurs in the United States, Germany, and Austria. Much less frequently, Prohaska is the forename as well as the last name.