The yellow-backed duiker (Cephalophus silvicultor) is an antelope found in central and western Africa. It has the widest range of any duiker in the genus Cephalophus.
Yellow-backed duikers grow to 3.8–4.8 ft (1.16–1.46 m) in length and 30 in (76 cm) high at the shoulder. They weigh around 130 lb (59 kg). Their coats are dark brown to black, with a yellow stripe above their hindquarters. They live in dense and open rainforests, where they eat seeds, fruits, grasses, fungi, and foliage.