| Armeau | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Armeau 89.svg |
| Coordinates: | 48.0464°N 3.3242°W |
| Insee: | 89018 |
| Postal Code: | 89500 |
| Arrondissement: | Sens |
| Canton: | Villeneuve-sur-Yonne |
| Mayor: | Catherine Toullier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Grand Sénonais |
| Elevation Min M: | 71 |
| Elevation Max M: | 211 |
| Area Km2: | 10.31 |
Armeau (in French pronounced as /aʁmo/) is a commune in the Yonne department in Bourgogne-Franche-Comté in north-central France.