Cognomen Posloncec (Posloncec 
) , around the world, is a very rare last name. The surname Posloncec is characteristic of Croatia, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Posloncec | Croatia, United States |
| danijela posloncec Serbian cyclist, RS (b. 1979) |
|