Cognomen วาฬ (Wan 
, วาฬ 
, Walvisch 
) , in the world, is a widespread last name. The last name วาฬ is characteristic of Hong Kong, where it is a common surname, Bermuda, and Macao (explore the name in all countries). Not in comparison with a country's population, the name is most common in China, Malaysia, and Hong Kong. Very seldom, วาฬ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wan | Malaysia, China, Indonesia, Hong Kong, Myanmar |
| วาฬ | Thailand |
| Walvisch | Netherlands, Australia, United States, United Kingdom |