Background: In 2014, among men who have sex with men (MSM), 27% of those with newly diagnosed HIV in the US were 13-24 years old; nearly 80% of these diagnoses were among black and Hispanic MSM. Little is known about how binge drinking may be associated with risky sexual behavior among adolescent sexual minority males (ASMM). Using data from National HIV Behavioral Surveillance for Young Men Who Have Sex with Men, we examined the association between binge drinking and condomless anal intercourse with a casual partner (CAIC). Methods: ASMM were recruited for interviews in 3 cities (Chicago, New York City, and Philadelphia). We estimated adjusted prevalence ratios (aPR) and 95% confidence intervals (CI) to investigate the association between CAIC in the past 12 months and binge drinking (≥5 drinks in one sitting in the past 30 days) among 16-18 year-olds (n=488) using Poisson regression with robust standard error and with race and binge drinking in an interaction term. Results: Overall, 27% of 16-18 year-old ASMM binge drank and 24% reported CAIC. Among binge drinkers, 33% reported CAIC compared to 21% of non-binge-drinkers (PR: 1.54, CI: 1.06-2.25). The association between binge drinking and CAIC varied by race (aPR: 1.89, CI: 1.03-3.48 among Hispanics; aPR: 1.51, CI: 0.83-2.74 among blacks; aPR: 1.06, CI: 0.40-2.77 among whites). Conclusions: Binge drinking and CAIC were common among ASMM and were associated among Hispanic ASMM. Interventions to decrease binge drinking in this population may help to reduce CAIC and subsequently new HIV infections.