Throughout the world, Arbu (Arbu 
) is a rare gender-neutral forename. The first name Arbu is habitual in Saudi Arabia, where it is a rare male name, Tanzania, where it is a very rare boy's name, and Indonesia, where it is a very rare epicene name. Measured by absolute frequency, the name is most common in India, Indonesia, and Saudi Arabia. Likewise, Arbu is the last name as well as the forename.