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Worldwide, Arbas (Arbas ) is a rare boy's first name. The first name Arbas is habitual in Ethiopia, where it is a rare boy's name, Saudi Arabia, and Pakistan, where it is a very rare boy's name. Measured by absolute frequency, the name is most common in Ethiopia, India, and Indonesia. More frequently, Arbas is the last name as well as the forename.
Arbas is also a name for the fictitious and mythical characters: Arbas , the operatic character in the opera Cadmus et Hermione.