Mielęcin was formerly part of the German Empire. In the German Empire, the place was called Millenzin.
The place is now called Milęcin (Włocławek-Milęcin) and belongs to Poland.
| Historical place name | Country | Administration | Time |
|---|---|---|---|
| Mielecin | Russian Empire | Vloclavek | 1914 |
| Mielęcin | Poland | Włocławek | 1921 |
| Milencin | German Empire | Leslau | 1939 |
| Millenzin | German Empire | Leslau | 1939 |
| Milęcin | Poland | Włocławek | 1945 |
| Milęcin (Włocławek-Milęcin) | Poland | Włocławek | 1992 |