Globally, เถ้า (Thao 
, Ashrof 
, Ashn 
) is a common unisex first name. The first name เถ้า is habitual in Macao, where it is quite a common largely feminine, but uncommonly masculine name, Vietnam, where it is quite a common unisex name, and Australia, where it is quite a rare principally feminine, but scarcely boy's name. In absolute terms, it is commonest in Vietnam, the United States, and Australia. Also, เถ้า is the last name as well as the forename.