Cognomen ด่าว (Dao 
, ด่าว) , in the entire world, is a widespread surname. The cognomen ด่าว is characteristic of 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, this name is the most popular in Vietnam, China, and the United States. Very seldom, ด่าว is the forename as well as the last name.