| Riantec | |
| Native Name: | Rianteg |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Riantec (Morbihan).svg |
| Coordinates: | 47.7117°N -3.3092°W |
| Insee: | 56193 |
| Postal Code: | 56670 |
| Arrondissement: | Lorient |
| Canton: | Hennebont |
| Mayor: | Jean-Michel Bonhomme[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Lorient Agglomération |
| Elevation Min M: | 0 |
| Elevation Max M: | 35 |
| Area Km2: | 14.06 |
Riantec (in French pronounced as /ʁjɑ̃tɛk/;) is a commune in the Morbihan department of Brittany in north-western France.[2]
The village sits on "La Petite Mer de Gavre" (french, The Small Sea of Gavre) with fine views across the bay.
Inhabitants of Riantec are called in French Riantécois.