Rumy was formerly part of the German Empire. In the German Empire, the place was called Rummau West.
The place is now called Rumy and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Rummy B | German Empire | Ortelsburg | 1938 |
| Rummau West | German Empire | Ortelsburg | 1939 |
| Rumy | Under Polish administration | Szczytno | 1945 |
| Rumy | Poland | Olsztyn | 1992 |