Back Oranjerivier Afrikaans نهر أورانج Arabic نهر اورانج ARZ Ríu Orange AST نارینجی چایی AZB Оранж Bashkir Аранжавая Byelorussian Аранжавая BE-X-OLD Оранжева река Bulgarian ऑरेंज नदी Bihari
The Orange River (officially called Oranje) is a river in Southern Africa. It is 2,160 kilometres (1,340 mi) long. It starts in Lesotho, and is the longest river there. For large parts of its course, it forms the border between South Africa and Namibia.