The Sierra de Grazalema Natural Park (Spanish: Parque natural de la Sierra de Grazalema) is a natural park in the northeastern part of the province of Cádiz in southern Spain. The park encompasses, within its 51,695 hectares (127,740 acres), a complex of mountain ranges, known collectively as the Sierra de Grazalema, which, in turn, are part of the Cordillera Subbética. Other ranges within the park, comprising the Sierra de Grazalema, include the Sierra de Zafalgar, the Sierra del Pinar, and the Sierra de Endrinal.