Cognomen ยาง (Yang 
, Yaong 
, ยาง ) , all over the world, is a prevalent surname. The cognomen ยาง is habitual in Cayman Islands, where it is a widespread surname, China, and British Virgin Islands (explore the name in all countries). Measured by absolute frequency, the name is most common in China, the United States, and Taiwan. Very seldom, ยาง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Yang | China, United States, Taiwan, Malaysia, Indonesia |
| Yaong | Philippines, China, Thailand, Malaysia, India |
| ยาง | Thailand |
| Rubbert | United Kingdom, China, United States, Canada, Germany |