SD Ponferradina B

Sociedad Deportiva Ponferradina B is a Spanish football team based in Ponferrada, in the El Bierzo region, León, in the autonomous community of Castile and León. Founded in 1963 as Club de Fútbol Endesa de Ponferrada, it is the reserve team of SD Ponferradina and currently plays in Tercera División, holding home games at Estadio Compostilla, which holds 6,000 spectators.

In April 25, 2013, SD Ponferradina announced the removal of its reserve team, Ponferradina B, due to running's high costs. At the same time, signed a three-year affiliate agreement with CD Flores del Sil.