The Hokonui Hills, also known as The Hokonui Mountains or simply The Hokonui, are a range of hills in central Southland, New Zealand. They rise to 600 metres above the surrounding Southland Plains, of which the hills mark a northern extremity. The Hokonui Hills also splits the Southland Plains in two - to the north and east lies the broad floodplain of the Mataura River, and to the south and west lie the plains of the Aparima and Oreti Rivers. The Oreti's major tributary, the Makarewa River rises in the south of the Hokonui Hills.