Cognomen ดีย์ (Di 
, ดีย์ 
) , in all the world, is a widespread family name. The cognomen ดีย์ is characteristic of Myanmar, where it is quite a common surname, Uruguay, and British Virgin Islands (explore the name in all countries). In absolute terms, it most frequently occurs in China, India, and Myanmar. Much less frequently, ดีย์ is the forename as well as the last name.