Sober is a municipality in the province of Lugo, in the autonomous community of Galicia, in northwestern Spain. It belongs to the comarca of Terra de Lemos and forms part of the local region known as Ribeira Sacra.
The municipality is located in Galicia's inland south, within the Terra de Lemos area, a district centred on the town of Monforte de Lemos. Its inclusion in the Ribeira Sacra links it to a broader regional landscape defined by the canyons of the Sil and Miño rivers, an area known for its terraced vineyards and monastic heritage.
Sober is one of the municipalities that make up the Terra de Lemos comarca, and its administrative identity is tied to both that comarca and the Ribeira Sacra region. As a Galician municipality, it sits within the province of Lugo, one of the four provinces of the autonomous community.