Family name Jaui (Jaui 
) , around the world, is a very rare cognomen. The cognomen Jaui is characteristic of Malaysia, where it is a rare surname, Spain, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Malaysia, Spain, and India. More prevalently, Jaui is the forename as well as the last name.