The giant sable antelope, (Hippotragus niger variani), also known in Portuguese as the palanca-negra-gigante, is a large, rare subspecies of sable antelope native and endemic to the region between the Cuango and Luando Rivers in Angola.

There was a great degree of uncertainty regarding the number of animals that survived during the Angolan Civil War. In January 2004, a group from the Centro de Estudos e Investigação Científica of the Catholic University of Angola, led by Dr. Pedro vaz Pinto, was able to obtain photographic evidence of one of the remaining herds from a series of trap cameras installed in the Cangandala National Park, south of Malanje.