BackgroundStudies indicate that alcohol use is more prevalent in the military and that such use is related to coping mechanisms for stress. Alcohol use could result in health and social problems. However, little is known about alcohol use in Ethiopian military personnel.ObjectiveTo assess the level of alcohol use and its associated factors in the Ethiopian military.MethodsA cross-sectional study including participants from the Ground and Air Forces of the Ethiopian National Defence Forces was conducted from February to June 2021. A representative sample of 502 military personnel from the two forces participated in the study. A structured questionnaire was developed to assess the individual level of alcohol use and its associated factors. The Alcohol Use Disorder Identification Test (AUDIT) was used to identify likely problematic alcohol use (AUDIT score ≥8). Hierarchical multivariable logistic regression models were run to identify associated factors with alcohol consumption.ResultsApproximately half of the respondents (49.8%, 95% CI 45.4% to 54.0%) were alcohol drinkers. Of the current alcohol users, 142 (63.1 %) were infrequent users; 60 (26.7 %) were moderate drinkers; and 23 (10.2 %) were heavy drinkers. Based on the AUDIT composite score, 71 (33.0%) of male participants were classified as having a score indicative of hazardous and harmful drinking and possible alcohol dependence behaviours. After adjusting for covariates, alcohol drinking was statistically significantly associated with higher odds of being: male, younger age, part of the Ground Force, smoker and high risk-taker.ConclusionsThis study provides an initial step to addressing patterns of harmful and hazardous alcohol use in the Ethiopian National Defence Forces. Findings indicate the need to integrate alcohol abuse prevention into existing health education and behaviour change efforts of the Ethiopian National Defence Forces.