The current study investigated how Korean adolescents perceive their own health risks and compare likelihood of their own health risks with those of others at the same age. 416 Korean students ( M = 16.2 yr., SD = .6) who attended junior high and high schools in Seoul completed a Korean version of the Self-Other Risk Judgments Profile. Analysis indicated adolescents tend to have unrealistic perceptions of their vulnerability to most health risks and perceived their own likelihood of encountering all health risk events as lower than that of others.