Otnoga was formerly part of the German Empire. In the German Empire, the place was called Mühlental (Pom.).
The place is now called Otnoga and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Wottnogge | German Empire | Stolp | 1937 |
| Mühlental (Pom.) | German Empire | Stolp | 1939 |
| Otnoga | Under Polish administration | Słupsk | 1945 |
| Otnoga | Poland | Słupsk | 1992 |