In the world, Сикст (Sisto 
, Sixte 
, Sixt 
) is quite a common principally male, but scarcely girly forename. The forename Сикст is characteristic of Italy, where it is quite a rare male name, Nicaragua, and the Democratic Republic of the Congo, where it is quite a rare dominantly masculine, but infrequently feminine name. Not in comparison with a country's population, it is the most numerous in Italy, the Democratic Republic of the Congo, and Argentina. Also, Сикст is the last name as well as the forename.
Сикст 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 Sixte du Châtelet , the Honoré de Balzac character, Illusions perdues.