Cognomen Sylvardain-Den-Gaètan (Sylvardain-Den-Gaètan 
) , worldwide, is an extremely rare family name. Predominantly, Sylvardain-Den-Gaètan is the forename as well as the last name. Parts of the name also exists independently as a first name Den, and a first name Gaètan.
| VARIANT | COUNTRY |
|---|---|
| Sylvardain-Den-Gaètan | Democratic Republic of the Congo |