Family name คุณบุตร (Son 
, คุณบุตร 
) , around the globe, is a widespread last name. The family name คุณบุตร is habitual in Saint Lucia, where it is quite a common surname, Macao, and Myanmar (explore the name in all countries). In absolute terms, it is the most numerous in South-eastern Asia, particularly Myanmar, Vietnam, and Indonesia. Also, คุณบุตร is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Son | Indonesia, Myanmar, Vietnam, India, South Korea |
| คุณบุตร | Thailand |