Gonschor was formerly part of the German Empire. In the German Empire, the place was called Gonscher.
The place is now called Gąsior and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Gonschor | German Empire | Sensburg | 1938 |
| Gonscher | German Empire | Sensburg | 1939 |
| Gąsior | Under Polish administration | Mrągowo | 1945 |
| Gąsior | Poland | Suwałki | 1992 |