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 | Sweden, Kenya, Malaysia, United States, Democratic Republic of the Congo |
| Siluan | China, Brazil, Malaysia, Colombia, Israel |
| Силуан | Russia, Ukraine |
| Sylwan | Sweden, South Africa, United States, Poland, Brazil |