This study examined the influence of adverse childhood experiences (ACEs) on Black sexual minority women's mental health and substance use disorders in adulthood. Secondary data analysis was conducted using N = 149 Black sexual minority women's reports from the Generations Study. Study variables included psychological distress, chronic strains, stressful life events, ACEs, and substance use disorders, including alcohol use disorder and drug use disorder. Quantitative data analysis consisted of descriptives and bivariate correlations. Participants' total ACE scores were positively significantly correlated with increased alcohol misuse, chronic life strains, and stressful life events. Exposure to household interpersonal violence and household mental illness during childhood were significantly correlated with alcohol misuse. Black sexual minority women with ACEs are at higher risk for mental health concerns throughout their lifespan and maladaptive coping strategies (e.g., substance use). Implications for counselors and therapists are provided.