Family name Širec (Širec 
) , across the world, is a very rare surname. The cognomen Širec is characteristic of Slovenia, where it is quite a rare surname, Croatia, and Germany, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Širec | Germany, Croatia, Slovenia |
| karin širec SI |
|
|
| jože širec SI |
|