Globally, ถ่าว (Thao 
, ถ่าว) is a common epicene first name. The first name ถ่าว is characteristic of Macao, where it is quite a common mostly feminine, but uncommonly male name, Vietnam, where it is quite a common gender-neutral name, and Australia, where it is quite a rare principally girly, but scarcely boy's name. In absolute terms, it is the most numerous in Vietnam, the United States, and Australia. Also, ถ่าว is the last name as well as the forename.