Imazighen (in Kabyle and other Berber languages: Imaziγen) are the indigenous peoples of North Africa west of the Nile Valley. They comprise a large number of distinct ethnic groups forming a heterogeneous compound. They are discontinuously distributed from the Atlantic to the Siwa oasis, in Egypt, and from the Mediterranean to the Niger River. They speak various Berber languages, which together form a branch of the Afroasiatic language family. Between fourteen and twenty-five million Berber speakers live within this region, most densely in Morocco and becoming generally scarcer eastward through the rest of the Maghreb and beyond.
Many Berbers call themselves some variant of the word Imazighen (singular Amazigh), meaning "free men". This is common in Morocco, but elsewhere within the Berber homeland a local, more particular term, such as Kabyle or Chaoui, is more often used instead. Historically Berbers have been variously known, for instance as Libyans by the ancient Greeks, as Numidians and Mauri by the Romans, and as Moors by medieval and early modern Europeans. The modern English term is borrowed from Arabic, but the deeper etymology of "Berber" is not certain.