HIV-related stigma is a global issue. Its perpetuation varies in magnitude across and within countries, and serves as a major barrier to HIV prevention efforts. Due to ignorance about the disease in sub-Saharan Africa, people living with HIV are often stigmatized, and as a result, experience dire consequences. In South Africa, women and adolescent girls are disproportionately infected by HIV. The stigma associated with HIV causes them to live in constant fear of discrimination, isolation, and violence from community members. The stigma also causes them to conceal their HIV status from family members, spouses, or partners, and thus, thwarts any chances of health seeking behavior that can improve upon their quality of life or prevent future transmissions. The stigma associated with HIV impacts women and adolescent girls in South Africa socially, economically and mentally. Given that women and adolescent girls are the population with the greatest HIV prevalence in South Africa, and given that prevention efforts cannot be as successful without addressing the issue of stigma among this group, deliberate commitment and an integrated approach from the government, healthcare professionals, public health officials, and communities are needed to stem the HIV tide in South Africa. These entities need to work together to create an environment where women and adolescent girls feel safe enough to disclose their HIV status and participate in prevention efforts. This article discusses HIV stigma among women and adolescent girls in South Africa. It presents some risk factors that predispose this population in South Africa to HIV, and highlights the social, economic and mental health effects of HIV-related stigma on them. The article further examines current efforts in South Africa to address HIV-related stigma among women and adolescent girls and proffers recommendations for eliminating stigma in order to pave way for effective national HIV prevention.