Using a province-wide school-based health survey, this article investigated body satisfaction as a mediator of the association between eating disorder behaviors and immigrant status. Participants were a sample of adolescent girls (n = 15,066) and boys (n = 14,200) who completed the 2008 McCreary Centre Society Adolescent Health Survey IV. Hypotheses were tested with general linear models complex samples analyses. Contrary to the hypotheses, adolescents born in North America displayed higher body satisfaction and lower prevalence rates of eating disorder behaviors compared to immigrant adolescents. Body satisfaction partially mediated the association between being born outside North America and binge eating and dieting behaviors for girls and boys, and purging for only boys. For those who had recently immigrated to North America, both boys and girls were more likely to engage in binge eating and display body dissatisfaction, and girls were more likely to diet. Body satisfaction partially mediated the association between the number of years in North America and binge eating for immigrant boys. The findings emphasize the need to understand the role of the immigration process in developing eating disorder behaviors for an adolescent population.