| Ria-Sirach | |
| Native Name: | Rià i Cirac |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Ria-Sirach 66.svg |
| Arrondissement: | Prades |
| Canton: | Les Pyrénées catalanes |
| Insee: | 66161 |
| Postal Code: | 66500 |
| Mayor: | Jean Maury[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 42.6094°N 2.4006°W |
| Elevation M: | 400 |
| Elevation Min M: | 339 |
| Elevation Max M: | 1081 |
| Area Km2: | 12.82 |
Ria-Sirach (pronounced as /fr/; ca|Rià i Cirac) is a commune in the Pyrénées-Orientales department in southern France.
Ria-sirach is in the canton of Les Pyrénées catalanes and in the arrondissement of Prades.