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