Last name Xad (Xad 
) , all over the world, is a very rare cognomen. The last name Xad is characteristic of South-eastern Asia, particularly Indonesia, where it is a very rare surname, Malaysia, and Thailand, where it is an extremely rare surname. Not in comparison with a country's population, this name is the most popular in Indonesia, China, and Malaysia. Much less frequently, Xad is the forename as well as the last name.