Cognomen ซันซัน (Sunsun 
, Sansun 
, Sunsan 
) , around the globe, is a rare surname. The surname ซันซัน is habitual in Hong Kong, where it is a rare surname, Myanmar, and Thailand. Not in comparison with a country's population, it most frequently occurs in South-eastern Asia, particularly Myanmar, Thailand, and Indonesia. More frequently, ซันซัน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sunsun | Hong Kong, Myanmar, Thailand, India, Indonesia |
| Sansun | Thailand, Malaysia, United Kingdom, India, Japan |
| Sunsan | Thailand, United States, India, Nigeria, Japan |
| ซันซัน | Thailand |