This article describes an analysis of existing peer-reviewed research articles on behavioral outcomes of young children prenatally exposed to alcohol. Developmental effects in children from birth to 72 months were identified in 51 studies with 634 behavioral outcomes categorized as adverse or no effect. Adverse outcomes were defined as statistically significant comparisons reflecting detrimental effects on behavioral development related to prenatal alcohol exposure. Although adverse outcomes were found within each domain, age grouping, and exposure category, they comprised fewer than 50% of all outcomes measured. Most outcomes were found in the neurobehavioral domain with children less than 1 month of age. Implications for intervention and research are discussed.