Lengkupchen was formerly part of the German Empire. In the German Empire, the place was called Lengenfließ.
The place is now called Lenkupie and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Lengkupchen | German Empire | Goldap | 1938 |
| Lengenfließ | German Empire | Goldap | 1939 |
| Lenkupie | Under Polish administration | Gołdap | 1945 |
| Lenkupie | Poland | Suwałki | 1992 |