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<0.001). In correlation analysis, a significant correlation was found between systolic (SBP) and diastolic blood pressures (DBP) and BMI, WHtR, and WC (p<0.001). 34% of SBP can be explained by WC (R2:0.346), 25% by BMI (R2:0.25), 34% by WHtR (R2:0.34) and 24% by HC (R2:0.24) while 20% of the DBP can be explained by WHtR (R2:0.20), 15% by BMI (R2:0.15), 20% by WC (R2:0.20) and 15% by HC (R2:0.15). Conclusion: BMI, WHtR and WC have a greater effect on SBP than DBP. BMI has less contribution to the development of hypertension compared to WHtR and WC.