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