Wadi Allaqi, (Arabic: وادي العلاقي) also transliterated as Wadi Allaqui or Wadi Alalaqi, is a wadi (dry river) in southern Egypt. It begins in Sudan below Halayeb Triangle and its mouth is south of Aswan on the eastern shore of Lake Nasser.
Wadi Allaqi is the major dry river in the southeastern part of the Eastern Desert of Egypt, draining the area from the hills near the Red Sea to the valley of the Nile. With a length of 250 km (160 mi), the wadi is used by the nomadic Bejas who live in the area – about 1,000 members of the Ababda and Bisharyn tribes as of 2003 – to graze livestock, for the production of charcoal for fuel, to collect medicinal plants, for quarrying for copper and nickel and for agriculture on a small scale. As of 1989 the area has been a nature reserve managed by the Egyptian Environmental Affairs Agency. It was declared a Biosphere Reserve by UNESCO in 1993.