| Trévillach | |
| Native Name: | Trevilhac |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Trévillach (Pyrénées-Orientales).svg |
| Arrondissement: | Prades |
| Canton: | La Vallée de l'Agly |
| Insee: | 66215 |
| Postal Code: | 66130 |
| Mayor: | Claude Sire[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Conflent-Canigó |
| Coordinates: | 42.7094°N 2.5308°W |
| Elevation M: | 486 |
| Elevation Min M: | 346 |
| Elevation Max M: | 800 |
| Area Km2: | 17.24 |
Trévillach (pronounced as /fr/; oc|Trevilhac; ca|Trevillac) is a commune in the Pyrénées-Orientales department in southern France.
Trévillach is located in the canton of La Vallée de l'Agly and in the arrondissement of Prades.