Aim: comparison of Ultrasonography (USG) and Computed Tomography (CT) in the evaluation of suspicious Ovarian Masses. Materials and Methods: This prospective observational study was carried out in the department of radiology.All patients underwent abdominal Ultrasonography and CT scan with determination of the ovarian mass characteristics. Results: There is total 30 cases of Pre-menopausal stage and 20 cases of Post-menopausal stagehavingovariancyst.Outof30 cases of Pre-menopausal conditions have 5 number of malignant and 25 number of benign type of ovarian masses. In the Postmenopausal group there are 15cases of malignant and 5cases of benign ovarian mass was observed. Table 3 shows CT and USG comparison for the diagnosis of ovarian masses. Overall, CT wasfound to have 98% sensitivity, 91% specificity, and an accuracy of 96% in the differentiation of benign and malignant ovarian masses,whilePPVandNPVwere 97%and93%,respectively. The sensitivity of USG was 88%, specificity was 86% and PPV and NPV were 87% and 83% respectively. Conclusion: In this present study showed significant differences in the two methods i.e USG and CT. CT is showing more advantages regarding tumor localization, characterization. Hence CT can be advised if the unusual abnormalities were observed in routine USG scan in the diagnosis of ovarianmasses.