| Jallais | |
| Arrondissement: | Cholet |
| Canton: | Beaupréau |
| Insee: | 49162 |
| Postal Code: | 49510 |
| Commune: | Beaupréau-en-Mauges |
| Coordinates: | 47.1978°N -0.8675°W |
| Elevation M: | 83 |
| Elevation Min M: | 57 |
| Elevation Max M: | 121 |
| Area Km2: | 52.87 |
| Population: | 3409 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
| Demonym: | Jallaisien, Jallaisienne |
Jallais (in French pronounced as /ʒalɛ/) is a former commune in the Maine-et-Loire department in western France.
On 15 December 2015, Andrezé, Beaupréau, La Chapelle-du-Genêt, Gesté, Jallais, La Jubaudière, Le Pin-en-Mauges, La Poitevinière, Saint-Philbert-en-Mauges and Villedieu-la-Blouère merged becoming one commune called Beaupréau-en-Mauges.
The commune is traversed by the Èvre river.