| Rueil-la-Gadelière | |
| Commune Status: | Commune |
| Arrondissement: | Dreux |
| Canton: | Saint-Lubin-des-Joncherets |
| Insee: | 28322 |
| Postal Code: | 28270 |
| Mayor: | Jean-Louis Godefroy[1] |
| Term: | 2023 - 2026 |
| Intercommunality: | CA Pays de Dreux |
| Coordinates: | 48.7156°N 0.9772°W |
| Elevation M: | 170 |
| Elevation Min M: | 147 |
| Elevation Max M: | 192 |
| Area Km2: | 18.44 |
Rueil-la-Gadelière (in French pronounced as /ʁɥɛj la ɡadəljɛʁ/) is a commune in the Eure-et-Loir department in northern France.