Surname Planjanin (Planjanin 
) , around the world, is a rare family name. The cognomen Planjanin is characteristic of Serbia, where it is quite a rare surname, Croatia, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Planjanin | United States, Croatia, Serbia |
| aurora rotariu planjanin Romanian poet in Serbia, RS (b. 1952) |
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