Last name สันทบ (Ridge 
, Santob 
, สันทบ ) , in all the world, is a common surname. The surname สันทบ is characteristic of Australia, where it is quite a rare surname, Ireland, and the United Kingdom. Not in comparison with a country's population, it is commonest in the United States, the United Kingdom, and Australia. Much less frequently, สันทบ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ridge | Australia, United Kingdom, United States, Democratic Republic of the Congo, Malaysia |
| Santob | Thailand, India |
| สันทบ | Thailand |