| Plonévez-du-Faou | |
| Native Name: | Plonevez-ar-Faou |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Plonévez-du-Faou (Finistère).svg |
| Coordinates: | 48.2542°N -3.8239°W |
| Elevation Min M: | 50 |
| Elevation Max M: | 275 |
| Insee: | 29175 |
| Postal Code: | 29530 |
| Arrondissement: | Châteaulin |
| Canton: | Carhaix-Plouguer |
| Mayor: | Marguerite Bleuzen[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Haute Cornouaille |
| Area Km2: | 80.73 |
Plonévez-du-Faou is a commune in the Finistère department of Brittany in north-western France.
Plonévez-du-Faou has an oceanic climate (Köppen climate classification Cfb). The average annual temperature in Plonévez-du-Faou is . The average annual rainfall is with December as the wettest month. The temperatures are highest on average in August, at around, and lowest in January, at around . The highest temperature ever recorded in Plonévez-du-Faou was on 9 August 2003; the coldest temperature ever recorded was on 2 January 1997.
Inhabitants of Plonévez-du-Faou are called in French Plonévéziens.