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 | Brazil, Thailand, United States, Nigeria, Peru |
| Watsan | Thailand, Myanmar, India, United States, Pakistan |
| วัตสัน | Thailand |
| Dyun | Philippines, Brazil, Bulgaria, India, United States |