Cognomen Silec (Silec 
) , in the entire world, is a rare last name. The surname Silec is habitual in Slovenia, where it is quite a rare surname, Croatia, where it is a rare surname, and Australia, where it is a very rare surname. Measured by absolute frequency, this name is the most popular in Slovenia, Australia, and Germany. Much less frequently, Silec is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Silec | Germany, Philippines, Australia, Croatia, Slovenia |