Avellaneda is a municipality in Spain, located in the province of Ávila within the autonomous community of Castile and León. It falls under the judicial district of Piedrahita.
The municipality is one of many small settlements that make up the sparsely populated rural landscape of the province of Ávila, in the southern part of Castile and León. Its administrative and legal affairs are handled through the judicial district of Piedrahita, a nearby town that serves as the seat for the surrounding area.
Like other municipalities in this part of Spain, Avellaneda is defined by its status as a local administrative entity within the Spanish system of municipal governance. The province of Ávila lies to the west of the autonomous community's capital region and borders several other provinces, including Salamanca, Toledo, and Cáceres.