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Cognomen Waru (Waru , วรุ ) , across the world, is quite a rare family name. The family name Waru is habitual in New Zealand, where it is quite a rare surname, Indonesia, where it is a rare surname, and Australia. Not in comparison with a country's population, the name is most common in Indonesia, Nigeria, and New Zealand. Also, Waru is the forename as well as the last name.