Mambilla ko Mambila na Najeriya suna zaune a tsaunin Mambilla (a cikin ƙaramar hukumar 'Sardauna' ta jihar Taraba a Najeriya ). Wasu ƴan tsirarun ƴan ci rani daga Mambilla sun tashi daga Mambilla Plateau zuwa Ndom Plain (wanda kuma aka sani da Tikar Plain) a gefen Kamaru na iyakar ƙasa da kasa da kuma a wasu kananan kauyyuka, kamar New Namba, gaba arewa zuwa garuruwan na Gashaka da Banyo. Sunan da aka fi so ana rubuta shi da Mambila a Kamaru da Mambilla a Najeriya. Ana amfani da "Norr" (kalmar mutum a cikin yarukan Najeriya na Mambilla) (Bami-Yuno, ms). Mutanen Mambilla / Mambila na Najeriya da Kamaru suna ɗaukar kansu a matsayin ƙungiya mai ma'ana ɗaya. Su ne masu ƙyamar yankin Mambilla, kuma sun kasance a cikin ƙasarsu har zuwa shekaru 4,000 (Zeitlyn & Connell, 2003). A cikin yarukan Najeriya suna kiran kansu da suna 'Norr' (mutane) yayin da a cikin Kamaru akwai wani suna na 'Ba' wanda ake amfani da shi ta hanyar da ba ta dace ba don komawa zuwa Mambilla, kuma suna nufin Mambilla a Kamaru a kan Ndom ko arewacin Tikar a fili (duba ƙasa) sabanin Mambilla da ke makwabtaka da tsaunukan Mambilla wanda za a iya kiransa da "Bo ba bo".