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Around the world, Hernani (Ernani , Hernani , Hernâni ) is a common primarily boy's, but scarcely girly forename. The given name Hernani is habitual in Cabo Verde, where it is quite a common male name, Portugal, and Brazil. Measured by absolute frequency, the name is most common in Brazil, Philippines, and Portugal. Much less frequently, Hernani is the last name as well as the forename.
Hernani is also a name for the fictitious and mythical characters: Hernani and Ernani , the operatic character in the opera Ernani by Giuseppe Verdi.