Cognomen 蔚青 (Weiqing 
, 蔚青 ) , globally, is quite a rare last name. The surname 蔚青 is characteristic of Singapore, where it is a rare surname, China, where it is a very rare surname, and Chile. Not in comparison with a country's population, this name is the most popular in China, Singapore, and the United States. Much more frequently, 蔚青 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Weiqing | Taiwan, China, Singapore, United States, Hungary |
| 蔚青 | China |