Sloniawy was formerly part of the German Empire. In the German Empire, the place was called Sloniawi.
The place is now called Słoniawy and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Sloniawy | Russian Empire | Makov | 1914 |
| Słoniawy | Poland | Maków | 1919 |
| Sloniawi | German Empire | Mackeim | 1939 |
| Słoniawy | Poland | Maków Mazowiecki | 1945 |
| Słoniawy | Poland | Ciechanów | 1992 |