Długie was formerly part of the German Empire. In the German Empire, the place was called Langenhöh.
The place is now called Długie and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Dluggen | German Empire | Lyck | 1938 |
| Langenhöh | German Empire | Lyck | 1939 |
| Długie | Under Polish administration | Ełk | 1945 |
| Długie | Poland | Suwałki | 1992 |