Prevalence of eating disorders (EDs) has increased among adolescents in Arabic and Western countries. The purposes are to identify the risk of ED and psychosocial correlates of risk of ED among high school girls in Jordan. The researchers employed a cross-sectional, correlational design using 799 high school girls from governmental and private schools in the central region of Jordan. The results indicate that prevalence of the risk of ED was 12%. The risk of ED had significant and positive correlation with body shape dissatisfaction, self-esteem, psychological distress, and pressure from family, peers, and media (p < 0.001). Body shape dissatisfaction, low self-esteem, negative peer pressure, and being young were significant predictors of the risk of EDs. Risk of ED is highly prevalent among high school girls, and school nurses need to adopt a model of care addressing the risk factors while caring for high school girls.