| Riec-sur-Bélon | |
| Native Name: | Rieg |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Riec-sur-Belon (Finistère).svg |
| Coordinates: | 47.8447°N -3.6933°W |
| Elevation Min M: | 0 |
| Elevation Max M: | 94 |
| Insee: | 29236 |
| Postal Code: | 29340 |
| Arrondissement: | Quimper |
| Canton: | Moëlan-sur-Mer |
| Mayor: | Sébastien Miossec[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Quimperlé Communauté |
| Area Km2: | 54.64 |
Riec-sur-Bélon (in French pronounced as /ʁjɛk syʁ belɔ̃/; Breton: Rieg) is a commune in the Finistère department of Brittany in north-western France.[2]
Inhabitants of Riec-sur-Bélon are called in French Riécois.
The municipality launched a linguistic plan concerning the Breton language through Ya d'ar brezhoneg on 16 December 2008.
Riec-sur-Bélon is twinned with: