| Language | Population | Bloc | Family | Cluster | Band | |
|---|---|---|---|---|---|---|
| ● Serbian | 11,624,100 | Indo-European | Slavic | South Slavic | South Western Slavic | |
| ● Croatian | 5,269,880 | Indo-European | Slavic | South Slavic | South Western Slavic | |
| ● Bosnian | 3,148,610 | Indo-European | Slavic | South Slavic | South Western Slavic | |
| ● Slovene | 2,074,210 | Indo-European | Slavic | South Slavic | South Western Slavic |