Wine regions of South Africa
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The wine regions of South Africa were defined under the "Wine of Origin" (Wyn van Oorsprong) act of 1973. Mirroring the French Appellation d'origine contrôlée (AOC) system, all South African wines listing a "Wine of Origin" must be composed entirely of grapes from its region. The "Wine of Origins" (WO) program mandates how wine regions of South Africa are defined and can appear on wine labels. While some aspects of the WO are taken from the AOC, the WO is primarily concerned with accuracy in labeling. As a result, the WO does not place adjunct regulations on wine regions such as delineating permitted varieties, trellising methods, irrigation techniques, and crop yields.
The WO system divides growing regions into four categories. The largest and most generic are Geographical Units (such as the Western Cape region) which subsume the smaller, but still broad spanning Regions (such as Overberg). Under these are clustered districts (like Walker Bay) and within them are wards (such as Elgin). Although these are geographic units, regions and districts are largely traced by political boundaries (wards are the segment most defined by unique, Terroir characteristics).
Geographical units 
- Western Cape - A large multi-regional designation covering every appellation except those in the Northern Cape.
- KwaZulu-Natal - The whole Province was designated as a Geographical Unit in August 2005.
- Eastern Cape - The Eastern Cape Province was designated South Africa’s newest wine region in 2009.
- Boberg - For use in respect of fortified wines from Paarl, Franschhoek and Tulbagh.
- Breede River Valley - contains three wine districts and fifteen wards
- Cape South Coast - contains five districts and 15 wards
- Coastal Region - contains eight districts and seventeen wards
- Klein Karoo - contains two districts and five wards
- Olifants River - contains three districts and five wards
- Northern Cape - contains two districts and three wards
- Eastern Cape - contains no districts and one ward
- Boberg - Paarl, Franschhoek and Tulbagh
- Breede River Valley - Breedekloof, Robertson, and Worcester
- Cape South Coast - Cape Agulhas, Overberg, Plettenberg Bay, Swellendam and Walker Bay
- Coastal Region - Cape Point, Darling, Paarl, Franschhoek/Franchhoek Valley, Stellenbosch, Swartland, Tulbagh and Tygerberg
- Klein Karoo - Calitzdorp and Langeberg-Garcia
- Olifants River - Citrusdal Mountain, Citrusdal Valley and Lutzville Valley
- Northern Cape - Douglas and Sutherland-Karoo,
- Breedekloof district of the Breede River Valley - Goudini and Slanghoek
- Robertson district of the Breede River Valley - Agterkliphoogte, Bonnievale, Boesmansrivier, Eilandia, Hoopsrivier, Klaasvoogds, Le Chasseur, McGregor and Vinkrivier
- Worcester district of the Breede River Valley - Aan-de-Doorns, Hex River Valley, Nuy and Scherpenheuvel
- Cape Agulhas district of the Cape South Coast - Elim
- Overberg district of the Cape South Coast - Elgin, Greyton, Klein River and Theewater
- Swellendam district of the Cape South Coast - Buffeljags, Malgas and Stormsvlei
- Walker Bay district of the Cape South Coast - Bot River, Hemel-en-Aarde Ridge, Hemel-en-Aarde Valley, Sunday's Glen, Upper Hemel-en-Aarde Valley
- Other wards from the Cape South Coast - Herbertsdale and Stilbaai East
- Darling district of the Coastal Region - Groenekloof
- Paarl district of the Coastal Region - Simonsberg-Paarl, Voor Paardeberg, and Wellington
- Stellenbosch district of the Coastal Region - Banghoek, Bottelary, Devon Valley, Jonkershoek Valley, Papegaaiberg, Polkadraai Hills and Simonsberg-Stellenbosch
- Swartland district of the Coastal Region - Malmesbury and Riebeekberg
- Tygerberg district of the Coastal Region - Durbanville and Philadelphia
- Other wards in the Coastal Region - Constantia and Hout Bay
- Other wards in the Klein Karoo Region - Montagu, Tradouw, Tradouw Highlands, Outeniqua and Upper Langkloof
- Citrusdal Mountain district of the Olifants River region - Piekenierskloof
- Lutzville Valley district of the Olifants River region - Koekenaap
- Wards of the Eastern Cape - St Francis Bay
See also 
- T. Stevenson "The Sotheby's Wine Encyclopedia" pg 445-446 Dorling Kindersley 2005 ISBN 0-7566-1324-8
- J. Robinson (ed) "The Oxford Companion to Wine" Third Edition pg 162-163 Oxford University Press 2006 ISBN 0-19-860990-6
- Sokopo, Asa (5 June 2010). "Eastern Cape's First Wine Estate". Daily Dispatch - South Africa. Retrieved 2010-06-05.