Kosa (Baltijsk-Kosa) was formerly part of the German Empire. In the German Empire, the place was called Neutief.
The place is now called Kosa (Baltijsk-Kosa) and belongs to Russian Federation.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neutief | German Empire | Samland | 1939 |
| Nojtif | Under Soviet administration | Kaliningrad | 1945 |
| Kosa (Baltijsk-Kosa) | Russian Federation | Baltijsk g. | 1992 |