Norcal Audi Club
- Informal group of Audi owners, future owners and enthusiasts whose goal is to plan group events designed to learn more about our favorite marque and generally have a good time. Features events, gallery, links, shop and users mailing list.
- http://www.norcalaudiclub.org/

Canadian Quattro Owners Club
- Owners stories, galleries and movies with Audi Quattro and other models.
- http://www.quattro.ca

Audi Club of South Africa
- Club for Audi enthusiasts to share their interest in motorcars, meet and discuss various topics.
- http://www.audiclubsa.org.za/

Audi Club North America
- Features news, events, members section with technical archive, forum and Quattro Quarterly national publication
- http://www.audiclubna.org/

Audi TT Car Club of America
- Offers membership cards, stickers, polls, calendars, discussions and online enrollment
- http://www.audittcca.com

SoCal TT Club
- Club for Southern California owners and fans.
- http://www.socalttclub.org

Audi Quattro Club U.S.A.
- Official Audi owners club for North America. Features technical information, member information, discussion forums, profiles of the new models from the manufacturer, and links to chapter sites.
- http://www.quattroclubusa.org/

Minnesota Audi Club
- Features discussion forums, upcoming scheduled events, and highlights of previous events.
- http://www.mnaudi.com/

Audiwerks
- Enthusiast and tuner centric. Includes free membership, profiles of members cars, and links to tuning and aftermarket accessories retailers.
- http://www.audiwerks.com/