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