Africa Desert In is a term that refers to four deserts located in Africa: the SAHARA (6 letters), Kalahari (8 letters), SAHARAN (7 letters), and SINAI (5 letters). The SAHARA is the largest desert in the world, covering much of North Africa. The Kalahari is located in southern Africa and is mostly covered by sand dunes. The SAHARAN is a smaller desert located in the northern part of Africa, and the SINAI is located in the northeast corner of Egypt.