Cordillera Occidental is Spanish for "Western mountain". It may refer to:
Cordillera Occidental (Colombia) Cordillera Occidental (Ecuador) Cordillera Occidental (Peru) Cordillera Occidental (Bolivia)
See also Sierra Madre Occidental, the Western mountain range in Mexico North American Cordillera, the Western mountain range in North America Cordillera Central (disambiguation) Cordillera Oriental (disambiguation)