Last name Širnik (Širnik 
) , in the world, is a very rare family name. The last name Širnik is characteristic of Southern Europe, particularly Slovenia, where it is quite a rare surname, and Croatia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Širnik | Croatia, Slovenia |
|
manja žugman širnik Slovene-Yugoslav journalist, poet, SI (b. 1977) |
|