Family name ท้าว (Thao 
, ท้าว) , in all the world, is a common last name. The cognomen ท้าว is characteristic of Macao, where it is quite a common surname, Vietnam, and Laos. In absolute terms, this name is the most popular in Vietnam, the United States, and Malaysia. Also, ท้าว is the forename as well as the last name.