Cognomen Itui (Itu 
, Itui 
) , throughout the world, is quite a rare last name. The last name Itui is habitual in Romania, where it is quite a rare surname, Botswana, and Indonesia, where it is a rare surname. Not in comparison with a country's population, this name is the most popular in Romania, Indonesia, and Nigeria. More prevalently, Itui is the forename as well as the last name.