Cognomen Itit (Itit 
) , across the world, is a rare last name. The family name Itit is habitual in South-eastern Asia, particularly Indonesia, where it is a very rare surname, Philippines, where it is an extremely rare surname, and Malaysia. Measured by absolute frequency, this name is the most popular in Indonesia, China, and Philippines. More prevalently, Itit is the forename as well as the last name.