This study meta-analyzes 23 independent studies that included information from 28,265 homicide offenders across nine countries. On average, 48% of homicide offenders were reportedly under the influence of alcohol at the time of the offense and 37% were intoxicated. We found no demographic variations across age, gender, or race, although the proportion testing positive within the United States appears to be decreasing over time. Further, the proportion of offenders who were under the influence of alcohol was lower among those who committed the homicide with a firearm. Communities that have high homicide rates should work to reduce alcohol consumption rates.