| Caudan | |
| Native Name: | Kaodan |
| Commune Status: | Commune |
| Coordinates: | 47.8114°N -3.3392°W |
| Insee: | 56036 |
| Postal Code: | 56850 |
| Arrondissement: | Lorient |
| Canton: | Lanester |
| Mayor: | Fabrice Vély[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lorient Agglomération |
| Elevation Min M: | 2 |
| Elevation Max M: | 84 |
| Area Km2: | 42.63 |
Caudan (pronounced as /fr/; br|Kaodan) is a commune in the Morbihan department of Brittany in north-western France.[2] The writer Yvonne Chauffin (1905–1995), laureate of the Prix Breizh in 1970, died in Caudan.
Inhabitants of Caudan are called in French Caudanais.
Caudan is part of the urban area of Lorient city,[2] located north of the town of Lanester.