The southern United States accounted for 52% of new HIV diagnoses in 2015. Visits to primary care providers (PCPs) offer opportunities for routine HIV screening. However, of at-risk persons in the United States who visited a health care provider within the previous year, >75% were not offered a test for HIV. Perceptions of patient population risk by PCPs could offer insight into these missed opportunities, and inform development of HIV testing interventions for PCPs to increase routine screening. During April-October 2017, we conducted online surveys regarding PCP's perceptions of patient HIV risk in six areas of the South with high-HIV prevalence. Surveys queried HIV-related knowledge, beliefs, attitudes, and practices. Free-text responses to the question ''Are there any unique or special risk factors relating to HIV infection in your patient population?'' were analyzed using NVivo for applied thematic analysis. Of 526 respondents, the mean age was 47 years with 65% white, 13% Asian/other, 13% black, 6% Hispanic/Latino; 71% female; 93% straight/heterosexual; and 35% offered HIV screening correctly based on standard of care. Main themes revealed were as follows: (1) provider perceptions of patient risk factors (e.g., ''injection drug use is rampant''), (2) provider perceptions of patient barriers to access and care (e.g., ''concern for parental notification and cost for treatment''), and (3) provider misconceptions of HIV risk and patient stigmatization (e.g., ''I have a low-risk population''). Our findings suggest that PCPs in the South may warrant education regarding local HIV prevalence and routine HIV screening and prevention practices.