| Arradon | |
| Native Name: | Aradon |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Arradon (Morbihan).svg |
| Coordinates: | 47.6264°N -2.8222°W |
| Insee: | 56003 |
| Postal Code: | 56610 |
| Arrondissement: | Vannes |
| Canton: | Vannes-2 |
| Mayor: | Pascal Barret[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Golfe du Morbihan - Vannes Agglomération |
| Elevation Min M: | 0 |
| Elevation Max M: | 61 |
| Area Km2: | 18.49 |
Arradon (in French pronounced as /aʁadɔ̃/; Breton: Aradon) is a commune in the Morbihan department in the Brittany region in northwestern France.
The inhabitants of Arradon are known as Arradonnais.