Introduction: Ovary is a complex structure and its neoplasms show a wide spectrum of histological types and clinical behavior. The present study was done with the aim of studying the histopathological pattern of ovarian tumors in women of various age groups. Ovarian tumors represent about 30% of all cancers of the female genital system. Ovarian tumor is the seventh leading cause of cancer death. Ovarian tumors are often difficult to detect until they are advanced in stage or size, as symptoms are vague and insidious. An accurate and early diagnosis of malignant lesions will go a long way in the optimal management of these cases. Aims and Objectives: To determine the frequency of different histological types of ovarian tumors in a tertiary care center. Materials and Methods: This was a retrospective study included 150 cases of histopathologically proven ovarian tumors, reported in the Sree Mookambika Institute of medical sciences, over a one and half year period (January 2018 to June 2019). These were classified according to the WHO classification of ovarian tumors. Clinical presentation of the patients was analyzed from archived case records. Results: Of 150 cases of ovarian tumors, 138 masses were unilateral (92%) and 12 were bilateral (8%). Benign neoplastic lesions were 58.7%, and malignant was 2%.In benign neoplastic, the most common neoplasm was serous cystadenoma followed by mucinous cystadenoma In malignant, the current study had 2 cases of mucinous cystadenoma with borderline malignancy and 1 case was serous papillary cystadenocarcinoma Conclusion: A more detailed prospective study include genetic profiling, to establish the reason for this low incidence of malignant lesions