The Apies River is a river that flows through the city of Pretoria, South Africa. Its source is located just south of the city (south of ) and it flows northward until it drains into the Pienaars River. The word "Apies" is Afrikaans for small monkeys and is a reference to the historical abundance of vervet monkeys on the Apies River banks. The Mamelodi township draws its name from the name of the river, with the full name being "Mamelodi ya Tshwane", meaning "Whistler of the Apies River", a nickname given to Paul Kruger