Naija-Kongo imhuri ye mutauro hwe usumamunyati inotaurwa muruzhinji (asi kwete wose) wehuwandu hwe muZasi-Sahara ye Afurika. Inobatanidza mitauro ye Mande (mhuri ine udhaivhesi hwakafanana ne mitauro ye Indo-Yuropu), mitauro ye Atirandiki-Kongo (dzino gova munyire we sistimu ye musangu-we-nauni), uye mimwe mitauro inotadzwa kupangurwa. Mhuri ye Naija-Kongo inogon kuva mhuri kurukuru pasirose, ye chitatu pakuwanda kwevatauri, uye ndiyo mhuri hombe muAfurika pakutaura nezve nzvimbo paTarachisi. Uyezve, ndiyo mhuri huru pakuva ne mitauro iri distingiti, ichiteerwa neOstironezhiya. Mitauro ye Naija-Kongo ne eretsinorogu i1,540. Pakava ne humbowo kuratidza kuti iri vharidhi (valid), inogona kuva mhuri yemitauro yechitatu pasirose pahuwandu hwevanhu vanoutaura serurimi rwamai, vatauri vanosvika 700 miriyoni kubva muna 2015. Mitauro dze Naija-Kongo dzinotaurwa nehuwandu hwevanhu vakawanda hwunosanganisa Chiyorubha, Chigbho, Chifurufurudhe (Chifurani), Chishona, Chisutu uye Chizuru. Chiswahiri ndicho chinotaurwa zvakanyanya pakati pe mitauro ye Naija-Kongo uye muAfurika yese, unoshandiswa semutauro wenyika zhinji kuMabvazuva uye Chemhembechemabvazuva eAfurika.