| Main index | Contents of Onomastikon |
| Former USSR index | Names from Russia, Europe/Caucusus, Asian Republics |
| Scandinavian index | Names from Scandinavian countries |
| Estonia | History, Male, Female, Surnames |
| Latvia | History, Male, Female, Surnames, Rulers |
| Lithuania | History, Male, Female, Surnames, Rulers |
| Finland | History, Pronunciation, Finnish, Biblical, Compounds, Various, Surnames, Religion |