| Main index | Contents of Onomastikon |
| Scandinavian index | Other Scandinavian names |
| Baltic index | Other names from the Baltic states |
| History | A short historical background |
| Pronunciation | Pronunciation, vowels |
| Religion | Gods, Kalevala |
| Finnish | Finnish names |
| Biblical | Names of Biblical origin |
| Various | Names of Greek, Latin, Germanic, Celtic origin |
| Compounds | Finnish compound names |
| Surnames | Finnish surnames |