Gajec was formerly part of the German Empire. In the German Empire, the place was called Neuendorf.
The place is now called Gajec and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Neuendorf | German Empire | Weststernberg | 1939 |
| Gajec | Under Polish administration | Rzepin | 1945 |
| Gajec | Poland | Gorzów | 1992 |