U
- Umzinto Taxi Owners Association (UTOA)
- Uncedo Service Taxi Association (USTA)
- UNICEF South Africa (USA)
- Union of Jewish Women of South Africa (UJW)
- United Association of South Africa (UASA)
- United Cerebral Palsy Association of South Africa (UCPA)
- United Christian Democratic Party (UCDP)
- United Democratic Movement (UDM)
- United Independent Movement (UIM)
- United Nations Association of South Africa (UNASA)
- Uniting Christian Students’ Association (UCSA)
- Universities South Africa (USAf)
- Upington & Gordonia Chamber of Business (UGCB)
- Upington Taxi Association (UTASA)
- Urban Design Institute of South Africa (UDISA)
- Urban Real Estate Research Unit (URERU)