Obrok was formerly part of the German Empire. In the German Empire, the place was called Wobrok.
The place is now called Obrok and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wobrok | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Obrok | Austro-Hungary | Leitmeritz | before the Treaty of Saint-Germain |
| Obrok | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Wobrok | Czechoslovakia | Litoměřice | after the Treaty of Saint-Germain |
| Wobrok | German Empire | Leitmeritz | 1938 |
| Obrok | Czechoslovakia | Litoměřice | 1945 |
| Obrok | Czechoslovakia | Česká Lípa | 1992 |
| Obrok | Czech Republic | Česká Lípa | 1993 |