Coordinates: 28°N 2°E﻿ / ﻿28°N 2°E﻿ / 28; 2 w:kab:Dzayer Algeria (Algeria) / Arabic: الجزائر al-Jazāir, Carabi Algerian Carabi: الدزاير al-dzāyīr; Luqadaha Berber: ⴷⵣⴰⵢⴻⵔ; Faransiis: Algerian), si rasmi ah Jamhuuriyadda Dadweynaha ee Aljeeriya, waa wadan madaxbannaan oo dhaca qaarada Africa, xeebta badda Mediterraneanka. Caasimadda iyo magaalada ugu dadka badan waa Algiers, oo ku taal waqooyiga dalka xeebta Mediterraneanka. Algeria waa wadanka tobnaad ee ugu weyn dunida, iyo man koowaad ee ugu weyn Afrika ayaa tan iyo markii koonfurta Suudaan ay ka madax banaaneyd Sudan 2011-kii. Aljeriya ayaa xuddun u ah Waqooyi-bari ee Tunisia, dhinaca bariga ee Liibiya, dhinaca Galbeedka ee Morocco, dhinaca koonfur galbeed ee u dhexeeya Galbeedka Saharan, Mauritania, iyo Mali, ilaa koonfur bari ee Niger, iyo waqooyiga badda Mediterranean. Wadanku waa Jamhuuriyad Seddexaad ah oo ka kooban 48 gobol iyo 1.541 wada-dhaqan (gobollo). Abdelaziz Bouteflika wuxuu ahaa madaxweynaha tan iyo 1999kii. Aljeeriya waxay ogtahay in badan oo ka mid ah boqortooyadii iyo nasteexooyinkii waagii hore ahaa, kuwaas oo ay ka mid yihiin Nimidiyiin, Phoenicians, Carthaginians, Romans, Umayyads, Abbasids, Idrisid, Aghlabid, Rugid, Fatimids, Zirid, Hammadids, Almoravids, Almohads, Boqortooyada.