Surname Чад (Chad 
, Chud 
, Чад 
) , in all the world, is a common last name. The surname Чад is characteristic of Aland Islands, where it is quite a common surname, Oman, where it is quite a rare surname, and Bangladesh. Measured by absolute frequency, the name is most common in Bangladesh, India, and the United States. Predominantly, Чад is the forename as well as the last name.