Surname سيوا (Siwa 
, سيوا 
) , throughout the world, is quite a common cognomen. The family name سيوا is characteristic of Qatar, where it is quite a rare surname, Nepal, and Tanzania. Not in comparison with a country's population, this name is the most popular in Indonesia, Tanzania, and Nepal. Also, سيوا is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siwa | India, Tanzania, Poland, Thailand, Indonesia |
| سيوا | Iran |