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In the entire world, Sisto (Sisto , Sextus , Сикст ) is quite a common male given name. The forename Sisto is habitual in Italy, where it is quite a rare boy's name, Nicaragua, and Argentina. Not in comparison with a country's population, it is the most numerous in Italy, Argentina, and Mexico. Likewise, Sisto is the last name as well as the forename.
Sisto is also a name for the fictitious and mythical characters: Sixtus Beckmesser , the operatic character in the opera Die Meistersinger von Nürnberg by Richard Wagner and Sextus , the operatic character in the opera Polyeucte by Charles Gounod; a young patrician.