Izilimi zesiNguni ziyisi Xhosa, isiZulu, isiSwati kanye nesi isiNdebele. Izilimi zesiNguni zikhulunywa eNingizimu Afrika, eZimbabwe naseSwatini. Igama elithi Nguni lithathelwa kuhlobo lwenkomo ebizwa ngokuthi 'inkomo kaNguni'. Igama elithi Nguni libuye lisetshenziswe ukuchaza abantu abakhuluma lolu limi. Izilimi zesiNguni ziliqenjana lwezilimi ezibizwa phecelezi ngokuthi i' Southern Bantu Languages'. Lezi zilimi zikhulunywa ngendlela ecishe ifane, ngakho uningi lwabantu abazikhulumayo bayakwazi ukuzwana nakuba bekhuluma izilimi ezahlukene. Ochwepheshe kwezezilimi bahlukanisa lezi zilimi zesiNguni ngamaqenjana amabili abizwa ngokuthi i"Zunda Nguni" kanye ne "Tekela Nguni". Izilimi zesiZunda ziyisiZulu, IsiXhosa kanyene siNdebele sasenyakatho Izilimi zesiTekela ziyisiSwati, IsiPhuti, IsiBhaca, IsiHlubi, IsiCele kanye nesiLala IsiZulu wulimi olukhulu ukwedlula ezinye izilimi zesiNguni ezifana nesiXhosa, isiSwati kanye nesiNdebele. Ngokuya ngocwaningo amaphesenti angaphezu kwamashumi ayisikhombisa, wabantu abakhuluma lolu limi basesifundazweni saKwaZulu-Natal, bese abanye baseGauteng naseMpumalanga. Akhona amanye amaphesenti wabantu abakhuluma isiZulu abaseMpumalanga Koloni. Isizulu sikhulunywa futhi NgamaNguni ahlala ezindaweni ezinjengeGoli nasesifundazweni saseMpumalanga.