| Quily | |
| Native Name: | Killi |
| Coordinates: | 47.8917°N -2.4775°W |
| Insee: | 56187 |
| Postal Code: | 56800 |
| Arrondissement: | Pontivy |
| Canton: | Ploërmel |
| Commune: | Val d'Oust |
| Elevation Min M: | 19 |
| Elevation Max M: | 133 |
| Area Km2: | 5.39 |
| Population: | 359 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Quily (in French pronounced as /kili/;, meaning "the forest") is a former commune in the Morbihan department of Brittany in north-western France. On 1 January 2016, it was merged into the new commune Val d'Oust.[2] Its population was 359 in 2019.[1] Inhabitants of Quily are called in French Quilyens.