Family name Николия (Nikolija 
, Николия 
) , worldwide, is a very rare cognomen. The last name Николия is characteristic of Eastern Europe, particularly Bulgaria, where it is a rare surname. Much more prevalently, Николия is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nikolija | North Macedonia, Australia, Serbia, Croatia, Bosnia and Herzegovina |
| Николия | Russia, Bulgaria |