Last name ศิว (Siwa 
, ศิว ) , all around the world, is quite a common family name. The surname ศิว is habitual in Qatar, where it is quite a rare surname, Nepal, and Tanzania. Not in comparison with a country's population, it most frequently occurs in Indonesia, Tanzania, and Nepal. Likewise, ศิว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siwa | Indonesia, Poland, India, Thailand, Tanzania |
| ศิว | Thailand |