Sędławki was formerly part of the German Empire. In the German Empire, the place was called Sandlack.
The place is now called Sędławki and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sandlack | German Empire | Bartenstein (Ostpr.) | 1939 |
| Sędławki | Under Polish administration | Bartoszyce | 1945 |
| Sędławki | Poland | Olsztyn | 1992 |