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Cognomen Tacha (Tache , Tacha , Таша ) , in the entire world, is a common last name. The surname Tacha is characteristic of Romania, where it is quite a common surname, Cameroon, where it is quite a rare surname, and Colombia. In absolute terms, it is commonest in Romania, Colombia, and Algeria. Very seldom, Tacha is the forename as well as the last name.