Family name ตาด (Tat 
, ตาด 
, Tatad 
) , throughout the world, is a common surname. The cognomen ตาด is characteristic of Malaysia, where it is quite a common surname, Macao, and Hong Kong, where it is quite a rare surname. Measured by absolute frequency, this name is the most popular in Malaysia, Turkey, and India. Much less frequently, ตาด is the forename as well as the last name.