Last name สุนนท์ (สุนนท์ 
, Sunon 
) , all over the world, is a rare surname. The family name สุนนท์ is habitual in Thailand, where it is a rare surname, Norway, and Honduras, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in Thailand, Norway, and India. Likewise, สุนนท์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุนนท์ | Thailand |
| Sunon | Norway, India, Thailand, Portugal, Nigeria |