Cognomen Santhad (Santhad 
) , globally, is a very rare family name. The cognomen Santhad is habitual in Thailand, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Santhad is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Santhad | United States, India, Thailand |