| Mortefontaine-en-Thelle | |
| Commune Status: | Commune |
| Arrondissement: | Beauvais |
| Canton: | Chaumont-en-Vexin |
| Insee: | 60433 |
| Postal Code: | 60570 |
| Mayor: | Jean-Louis Goupil[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 49.2633°N 2.1878°W |
| Elevation M: | 150 |
| Elevation Min M: | 92 |
| Elevation Max M: | 192 |
| Area Km2: | 6.02 |
Mortefontaine-en-Thelle is a commune in the Oise department in northern France.