The purpose of this study was to assess the relationships between disclosure of HIV serostatus to sex partners and recent sexual risk behavior, substance abuse, and violence among sexually active HIV-infected patients with a history of alcohol problems. Participants (n = 124) were 79% males; age 25-61 years; 49% Black; and 35% with less than a high school education. Separate logistic regression models were used to assess relationships between each independent variable of interest and nondisclosure. Results demonstrate that buying sex and having more than one sex partner in the past 6 months were significantly associated with nondisclosure of HIV serostatus to a sex partner. Findings from this study underscore the ongoing need for behavioral interventions with HIV-infected individuals concerning disclosure. Programs that emphasize serostatus disclosure and/or consistent condom use in the context of sex trade and with multiple sexual partners will be particularly important.