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 | India, Myanmar, Thailand, Indonesia, Hong Kong |
| Sansun | Malaysia, United Kingdom, Japan, India, Thailand |
| Sunsan | Japan, United States, India, Thailand, Nigeria |
| ซันซัน | Thailand |