Kaštanovo was formerly part of the German Empire. In the German Empire, the place was called Almenhausen.
The place is now called Kaštanovo and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Almenhausen | German Empire | Preußisch Eylau | 1939 |
| Alˈmenhauzen | Under Soviet administration | Kaliningrad | 1945 |
| Kaštanovo | Russian Federation | Pravdinsk | 1992 |