| Landrévarzec | |
| Native Name: | Landrevarzeg |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Landrévarzec (Finistère).svg |
| Coordinates: | 48.0903°N -4.0592°W |
| Insee: | 29106 |
| Postal Code: | 29510 |
| Arrondissement: | Quimper |
| Canton: | Briec |
| Mayor: | Paul Boedec[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Quimper Bretagne Occidentale |
| Elevation Min M: | 42 |
| Elevation Max M: | 165 |
| Area Km2: | 20.32 |
Landrévarzec (in French pronounced as /lɑ̃dʁevaʁzɛk/; Breton: Landrevarzeg) is a commune in the Finistère department of Brittany in north-western France.
Inhabitants of Landrévarzec are called in French Landrévarzécois.
The municipality launched a linguistic plan through Ya d'ar brezhoneg on 7 November 2008.