Last name ถิว (Thio 
, ถิว 
) , globally, is a common family name. The surname ถิว is characteristic of Singapore, where it is quite a common surname, Ivory Coast, where it is quite a rare surname, and Indonesia. Likewise, ถิว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thio | Indonesia, Singapore, Ivory Coast, Malaysia, United States |
| ถิว | Thailand |