Worldwide, Арау (Arau 
, Арау 
) is a rare epicene first name. The first name Арау is characteristic of Nigeria, where it is a very rare masculine name, Mexico, where it is a very rare predominantly masculine, but scarcely feminine name, and China, where it is an extremely rare gender-neutral name. Not in comparison with a country's population, it is the most numerous in China, India, and Nigeria. More frequently, Арау is the last name as well as the forename.