Family name Sylivanus (Sylivanus 
) , worldwide, is quite a rare last name. The surname Sylivanus is characteristic of Sub-Saharan Africa, particularly Tanzania, where it is quite a rare surname, and Nigeria, where it is a very rare surname. Also, Sylivanus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sylivanus | Tanzania, Nigeria |