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