Last name วัตสัน (Watsun 
, Watsan 
, วัตสัน ) , all around the world, is a rare cognomen. The family name วัตสัน is characteristic of Bulgaria, where it is a rare surname, Thailand, where it is a very rare surname, and Myanmar. Likewise, วัตสัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Watsun | Peru, Nigeria, United States, Thailand, Brazil |
| Watsan | Thailand, United States, India, Pakistan, Myanmar |
| วัตสัน | Thailand |
| Dyun | Philippines, United States, Bulgaria, India, Brazil |