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