Family name Силуан (Sylvan 
, Siluan 
, Силуан 
) , in the entire world, is quite a rare surname. The family name Силуан is habitual in Grenada, where it is quite a common surname, Trinidad and Tobago, and Sweden, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in Sweden, the United States, and Malaysia. Likewise, Силуан is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sylvan | Democratic Republic of the Congo, Kenya, Malaysia, Sweden, United States |
| Siluan | Malaysia, China, Colombia, Israel, Brazil |
| Силуан | Russia, Ukraine |
| Sylwan | Sweden, United States, South Africa, Poland, Brazil |