| La Fontenelle | |
| Native Name: | Ar Fantanig |
| Coordinates: | 48.4686°N -1.5017°W |
| Insee: | 35113 |
| Postal Code: | 35560 |
| Arrondissement: | Fougères-Vitré |
| Canton: | Antrain |
| Commune: | Val-Couesnon |
| Elevation Min M: | 7 |
| Elevation Max M: | 117 |
| Area Km2: | 12.36 |
| Population: | 539 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
La Fontenelle (in French pronounced as /la fɔ̃tnɛl/; Breton: Ar Fantanig; Gallo: La Fontenèll) is a former commune in the Ille-et-Vilaine department of Brittany in north-western France. On 1 January 2019, it was merged into the new commune Val-Couesnon.[2]
Inhabitants of La Fontenelle are called in French Fontenellois.