Cognomen Silca (Silca 
) , worldwide, is a rare surname. The surname Silca is habitual in Romania, where it is a rare surname, Portugal, and Brazil, where it is a very rare surname. Also, Silca is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silca | Portugal, Spain, Brazil, United States, Romania |
| cristiana mihaela silca figure skater |
|