ABSTRACT: HIV disproportionately affects persons in Southeast United States. Primary care providers (PCPs) are vital for HIV prevention. Data are limited about their prescribing of antiretrovirals (ARVs) for prevention, including non-occupational post-exposure prophylaxis (nPEP), pre-exposure prophylaxis (PrEP), and antiretroviral therapy (ART). We examined these practices to assess gaps. During April-August 2017, we conducted an online survey of PCPs in Atlanta, Baltimore, Baton Rouge, Miami, New Orleans, and Washington, DC to assess HIV-related knowledge, attitudes and practices. Adjusted prevalence ratios (aPR) and 95% confidence intervals (CI) were used to estimate correlates of nPEP, PrEP and ART prescribing practices. Adjusting for MSA and specialty, the weighted sample (n?=?820, 29.6% adjusted response rate) comprised 60.2% white and 59.4% females. PCPs reported ever prescribing nPEP (31.0%), PrEP (18.1%), and ART (27.2%). Prescribing nPEP was associated with nPEP familiarity (aPR?=?2.63, 95% CI 1.59, 4.35) and prescribing PrEP (aPR?=?3.57, 95% CI 2.78, 4.55). Prescribing PrEP was associated with PrEP familiarity (aPR?=?4.35, 95% CI 2.63, 7.14), prescribing nPEP (aPR?=?5.00, 95% CI 2.00, 12.50), and providing care for persons with HIV (aPR?=?1.56, 95% CI 1.06, 2.27). Prescribing ART was associated with nPEP familiarity (aPR?=?1.89, 95% CI 1.27, 2.78) and practicing in outpatient public practice versus hospital-based facilities (aPR?=?2.14 95% CI 1.51, 3.04), and inversely associated with collaborations involving specialists (aPR?=?0.60, 95% CI 0.42, 0.86). A minority of PCPs surveyed from the Southeast report ever prescribing ARVs for prevention. Future efforts should include enhancing HIV care coordination and developing strategies to increase use of biomedical tools.