The Sierra de Falcón consists of a series of mountains located in Venezuela's Falcón State of relatively low altitude, mostly formed by the Sierra de San Luis and the Sierra de Churuguara. They have an East-West orientation and are part of the Coriano System. The Sierra de San Luis has been made into a National Park - the Juan Crisóstomo Falcón National Park.
The natural border in the North are partly the istmo de los Médanos de Coro. In the south the .
Mainly
and the south of :
It has a surface of 4.219 km² and ca 40.000 inhabitants.