Serbian
7 countries speak it.
Read about Serbian on Wikipedia
| Country | Share of the country |
|---|---|
 Serbia
|
88.1%official |
 Montenegro
|
42.9% |
 Bosnia and Herzegovina
|
30.8%official |
 Austria
|
2.2% |
 Slovenia
|
1.6% |
 Kosovo
|
1.6%official |
 Croatia
|
1.2% |