| Settlement Type: | municipality |
| Official Name: | Villanueva de la Sierra, Spain |
| Subdivision Name3: | Villanueva de la Sierra |
| Area Total Km2: | 44 |
| Elevation M: | 524 |
| Population Density Km2: | auto |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Latitude: | 40º12' N |
| Longitude: | 6º24' W |
Villanueva de la Sierra is a municipality located in the province of Cáceres, Extremadura, Spain. According to the 2005 census (INE), the municipality has a population of 577 inhabitants.
Villanueva Sierra is the town that held the first Arbor Day in the world. The initiative was launched in 1805 by the local priest.[1]
Arbor Day is celebrated every Carnival Tuesday and is an important day in the local festival calendar.[2]