Last name Siyabu (Siyabu 
) , all around the world, is a rare surname. The cognomen Siyabu is habitual in Malawi, where it is a rare surname, South Africa, where it is an extremely rare surname, and India. Also, Siyabu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Siyabu | South Africa, India, Malawi |