Last name Iiiii (Iiiii 
) , in all the world, is a very rare cognomen. The surname Iiiii is characteristic of New Zealand, where it is a rare surname, Thailand, where it is an extremely rare surname, and Malaysia. Not in comparison with a country's population, it is the most numerous in China, New Zealand, and Thailand. Much less frequently, Iiiii is the forename as well as the last name.