Last name เจา (Chao 
, Die 
, เจา 
) , in all the world, is a widespread family name. The cognomen เจา is habitual in Macao, where it is a widespread surname, Cayman Islands, where it is quite a common surname, and Taiwan (explore the name in all countries). Measured by absolute frequency, this name is the most popular in China, the United States, and Taiwan. Likewise, เจา is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chao | Macao, China, United States, Indonesia, Taiwan |
| Die | Ivory Coast, China, United States, Malaysia, Indonesia |
| เจา | Thailand |
| Hjau | Philippines, United States |