Last name สูนย์ (Sun 
, สูนย์ 
) , throughout the world, is a prevalent surname. The family name สูนย์ is habitual in Bermuda, where it is a widespread surname, Cayman Islands, and British Virgin Islands (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in China, Malaysia, and the United States. Very seldom, สูนย์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sun | Malaysia, China, Indonesia, United States, Myanmar |
| สูนย์ | Thailand |