| Allaire | |
| Native Name: | Alaer |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Allaire (Morbihan).svg |
| Insee: | 56001 |
| Postal Code: | 56350 |
| Arrondissement: | Vannes |
| Canton: | Guer |
| Mayor: | Jean-François Mary[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Redon Agglomération |
| Coordinates: | 47.6378°N -2.1617°W |
| Elevation Min M: | 1 |
| Elevation Max M: | 88 |
| Area Km2: | 41.74 |
Allaire (in French pronounced as /alɛʁ/; Breton: Alaer) is a commune in the Morbihan department in the Brittany region in northwestern France.
The river Arz forms most of the commune's northeastern border.
Inhabitants of Allaire are called Allairiens.