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All around the world, Diener (Diener , 迪纳 , Динер ) is a rare primarily boy's, but scarcely female given name. The forename Diener is characteristic of Panama, where it is a rare male name, the Democratic Republic of the Congo, and Brazil, where it is a very rare male name. Measured by absolute frequency, it is the most numerous in the Democratic Republic of the Congo, Brazil, and China. Predominantly, Diener is the last name as well as the forename.
Diener is also a name for the fictitious and mythical characters: Diener , the operatic character in the opera Der geizige Ritter, The Miserly Knight; Diener des Cavalieres , the operatic character in the opera Mirandolina (Martinů); Diener Karl , the operatic character in the opera Der Vetter aus Dingsda, The Cousin from Nowhere (operetta); Diener , the operatic character in the opera Giulietta e Romeo (Zandonai) and Diener Hans , the operatic character in the opera Der Vetter aus Dingsda, The Cousin from Nowhere (operetta), among other works.