Hausa (/ˈhaʊsə/; Harshen/Halshen Hausa) is the Chadic language (a branch of the Afroasiatic language family) with the largest number of speakers, spoken as a first language by some 44 million people, and as a second language by another 20 million. The total number of Hausa speakers is estimated at 63 million, according to Ethnologue. The ancestral language of the Hausa people, one of the largest ethnic groups in Central Africa, Hausa is mostly spoken throughout southern Niger and northern Nigeria. It has developed into a lingua franca across much of Western Africa for purposes of trade. A small group in the US speak Hausa (mostly from Ghana).
Hausa belongs to the West Chadic languages subgroup of the Chadic languages group, which in turn is part of the Afroasiatic language family. Other Afroasiatic languages are Semitic languages including Arabic, Aramaic languages, Hebrew, extinct Phoenician and extinct Akkadian; Berber languages; Ethiopian languages including Amharic, Gurage, Tigre and Tigrinya; Cushtic languages including Somali and Oromo; other Chadic languages including Glavuda, Byabur, Mwaghavul, Terua, Tangiale, Karekare, Bole, Sayawa, Bwatiye, Ngas, Bade, Gwandara, Galambu, Pali, Higi, Ronn, Duhwa, Margi, Kilba, Duwai and many others.
(Courtesy of Hausa Language Wikipedia)