The Sierra de Francia is a comarca located at the southern end of Salamanca Province, Castile and León, Spain.

They rise over the Northern Castilian Plateau and mark the geographical limit of its southwestern plains (Llanura Salmantina).

From its southern side this mountain chain marks the northern limit of Las Hurdes, the legendary Extremaduran comarca.

[citation needed] The mountain range consists of a quite regular succession of peaks of moderate height, of which the Pico de La Hastiala (1.735 m) is the highest.

At the top of the Peña de Francia (1723 m) stands one of the highest Virgin Mary shrines of the world, as well as a RTVE antenna.