| Saint-Denis-de-Gastines | |
| Commune Status: | Commune |
| Arrondissement: | Mayenne |
| Canton: | Ernée |
| Insee: | 53211 |
| Postal Code: | 53500 |
| Mayor: | Thierry Chrétien[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Ernée |
| Coordinates: | 48.3428°N -0.8561°W |
| Elevation M: | 176 |
| Elevation Min M: | 128 |
| Elevation Max M: | 247 |
| Area Km2: | 48.01 |
Saint-Denis-de-Gastines (in French pronounced as /sɛ̃ dəni də ɡastin/) is a commune in the Mayenne department in north-western France.[2]