| Sils | |
| Settlement Type: | Municipality |
| Pushpin Map: | Spain Province of Girona#Spain |
| Pushpin Map Caption: | Location in Catalonia |
| Coordinates: | 41.8°N 47°W |
| Subdivision Type: | Country |
| Subdivision Name: |  Spain |
| Subdivision Type1: | Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Girona |
| Subdivision Type3: | Comarca |
| Subdivision Name3: | Selva |
| Leader Title: | Mayor |
| Leader Name: | Eduard Colomé Ribas (2019)[1] |
| Area Footnotes: | [2] |
| Area Total Km2: | 29.9 |
| Elevation M: | 76 |
| Population Density Km2: | auto |
| Population Demonym: | Silenc, silenca |
Sils (in Catalan; Valencian pronounced as /ˈsils/) is a municipality in the comarca of Selva, in Catalonia, Spain. It is situated next to a former lake, which was drained in the nineteenth century. Autopista AP-7 and road N-II run through the municipality, and there is a Renfe railway station on the line between Barcelona and Girona.
| Pop 1900: | 1221 |
| Pop 1930: | 1362 |
| Pop 1950: | 1586 |
| Pop 1970: | 1923 |
| Pop 1986: | 2058 |
| Pop Latest: | 4347 |
| Latest Year: | 2007 |
See main article: Lake Sils, Catalonia. Formerly a 7 km2 lake, known as Llac de Sils or Estany de Sils existed close to this town, but it was desiccated in the 19th century and only a few residual wetlands remain. Presently some efforts are under way to try to reestablish a pond restoring a sample of the original vegetation.[3]