Cognomen Naua (Naua 
) , around the world, is a rare family name. The cognomen Naua is characteristic of Fiji, where it is quite a common surname, Papua New Guinea, where it is quite a rare surname, and New Zealand, where it is a rare surname. Measured by absolute frequency, it is commonest in Papua New Guinea, Fiji, and India. Likewise, Naua is the forename as well as the last name.