Drainage Basin A, is one of the drainage basins of South Africa. The main river in this system is the Limpopo River. It is subdivided into 9 sub-drainage basins.

• A1 is situated along the Botswana border, and is again divided into 3 river basins
  • A10A covers the Ngotwane River up to and including the Ngotwane Dam
  • A10B covers the Notwane River up to the border with Botswana and it joins the Taung River in Botswana, just before it drains into the Gaborone Dam
  • A10C covers the Segakwane River before it crosses the border with Botswana.
• A2 has the Marico River as main river system.
  • A21A covers the Hennops River and Rietvlei River up to and including the Rietvlei Dam
• A3 has the Crocodile River as main river system and divided into 11 river basins. Situated off northwest Gauteng and Limpopo province.
  • A31A
  • A32A
  • A32B
  • A32C covers the Brakfonteinspruit until it drains into the Molatedi Dam, as well as a short section of the Raswue River, before it crosses the border with Botswana.
• A4 has the Mokolo River as main river system. Includes the Matlabas River, a smaller tributary of the Limpopo.
• A5 has the Lephalala River as main river system.
• A6 has the Mogalakwena River as main river system.
• A7 has the Sand River (Polokwane) as main river system.
• A8 has the Nzhelele River as main river system. Includes the Nwanedi River
• A9 has the Luvuvhu River as main river system.

References

• Primary drainage region A
• Major rivers and streams within the Limpopo River Basin