Sowiróg was formerly part of the German Empire. In the German Empire, the place was called Loterswalde.
The place is now called Sowiróg and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sowirog | German Empire | Johannisburg | 1935 |
| Loterswalde | German Empire | Johannisburg | 1939 |
| Sowiróg | Under Polish administration | Pisz | 1945 |
| Sowiróg | Poland | Suwałki | 1992 |