Cognomen เฮา (Hao 
, เฮา 
) , worldwide, is a widespread family name. The cognomen เฮา is habitual in Malaysia, where it is a common surname, Macao, where it is quite a common surname, and Cayman Islands (explore the name in all countries). In absolute terms, it is the most numerous in China, Malaysia, and Vietnam. Much less frequently, เฮา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hao | Philippines, China, United States, Vietnam, Malaysia |
| เฮา | Thailand |