The Eye of Kuruman (Afrikaans: Die Oog) is a spring in the town of Kuruman in the province of Northern Cape, South Africa. One source states it is the largest known natural spring in the southern hemisphere. Although the Te Waikoropupū Springs in Golden Bay, New Zealand has been reliably measured at an average flow some 60 times greater (14 m3/second).
The spring forms a small lake in the middle of the town, directly on the N14 road and is located in a fenced park. It has a daily flow of about 20,000 m³ of crystal-clear, potable water. Water from the spring supplies the town of Kuruman.