Zastrużne was formerly part of the German Empire. In the German Empire, the place was called Schlangenfließ.
The place is now called Zastrużne and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sastrosnen | German Empire | Johannisburg | 1938 |
| Schlangenfließ | German Empire | Johannisburg | 1939 |
| Zastrużne | Under Polish administration | Pisz | 1945 |
| Zastrużne | Poland | Suwałki | 1992 |