Raciazek was formerly part of the German Empire. In the German Empire, the place was called Radensburg.
The place is now called Raciążek and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Raciazek | Russian Empire | Nešava | 1914 |
| Raciążek | Poland | Nieszawa | 1921 |
| Raciążek | German Empire | Hermannsbad | 1939 |
| Radensburg | German Empire | Hermannsbad | 1939 |
| Raciążek | Poland | Aleksandrów Kujawski | 1945 |
| Raciążek | Poland | Włocławek | 1992 |