Worldwide, Raiwa (Raiwa 
, Райва 
, ไรวา 
) is quite a rare masculine first name. The forename Raiwa is characteristic of Japan, where it is quite a rare masculine name, Pakistan, where it is a very rare male name, and Nigeria, where it is an extremely rare epicene name. Not in comparison with a country's population, it is the most numerous in Japan, Pakistan, and India. Much less frequently, Raiwa is the last name as well as the forename.