Introduction: To determine the prevalence of hypertension in adolescents, its relationship with obesity, and which of the BMI, waist circumference (WC), hip circumference (HC), and waist-height ratio (WHtR) affect adolescent hypertension more. Material and Methods: In this cross-sectional study, the weights, heights, WC, HC, blood pressure and sociodemographic data measured in May 2019 for students aged 14-18 were analyzed retrospectively. Among the 4580 high school students aged 14-18, 4529 students with complete data were included in the study. Weight, height, waist circumference, hip circumference, blood pressure were measured in students. The predictive values of the variables causing high blood pressure were measured. Results: The prevalence of hypertension in 4529 students included in the study was 14.3% as 36.5% in the obese and 12.3% non-obese (p