Family name Siane (Siane 
) , all over the world, is a rare last name. The surname Siane is characteristic of Botswana, where it is quite a common surname, Indonesia, where it is a rare surname, and Belgium. Measured by absolute frequency, this name is the most popular in Indonesia, Botswana, and South Africa. More prevalently, Siane is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siane | South Africa, Brazil, Laos, Indonesia, Botswana |