Last name เด้า (Dao 
, เด้า) , in all the world, is a widespread surname. The cognomen เด้า is habitual in Macao, where it is quite a common surname, Vietnam, and Mali (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Vietnam, China, and the United States. Much less frequently, เด้า is the forename as well as the last name.