Buk was formerly part of the German Empire. In the German Empire, the place was called Buk.
The place is now called Buk and belongs to Czech Republic.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Buchen | Austro-Hungary | Prachatitz | before the Treaty of Saint-Germain |
| Buk | Austro-Hungary | Prachatitz | before the Treaty of Saint-Germain |
| Buk | Czechoslovakia | Prachatice | after the Treaty of Saint-Germain |
| Buchen | German Empire | Strakonitz | 1939 |
| Buk | German Empire | Strakonitz | 1939 |
| Buk | Czechoslovakia | Vimperk | 1945 |
| Buk | Czechoslovakia | Prachatice | 1992 |
| Buk | Czech Republic | Prachatice | 1993 |