| Selles-Saint-Denis | |
| Commune Status: | Commune |
| Arrondissement: | Romorantin-Lanthenay |
| Canton: | La Sologne |
| Insee: | 41241 |
| Postal Code: | 41300 |
| Mayor: | Stéphane Leroy[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | La Sologne des rivières |
| Coordinates: | 47.3867°N 1.9236°W |
| Elevation Min M: | 89 |
| Elevation Max M: | 129 |
| Area Km2: | 50.98 |
Selles-Saint-Denis (in French pronounced as /sɛl sɛ̃ dəni/) is a commune in the Loir-et-Cher department of central France.
The river Rère flows west through the southern part of the commune.