Introduction: Ovary is the commonest site for developing non-neoplastic and neoplastic lesions. These lesions can occur in any age group from childhood to postmenopausal women. 

Aims and Objectives: This study was conducted to analyse the histopathological features of all ovarian lesions and classify them. Materials and Methods: Present study is a prospective study of 52 cases carried out over a period of one year from July 2016 to July 2017 . All patients admitted in gynaecologyward posted for oophorectomywith or without hysterectomywere included in the study. Salient findings related to individual case alongwith final histopathogical diagnosis were noted. Results: There were total 58 lesions; out of which 37 were non-neoplastic; 13 were benign; and 8 lesions were of malignant variety. The most common age group involved was 40-59 years. The commonest symptom was abdominal pain and the right sided ovary was commonly involved. Follicular cyst was the commonest non-neoplastic lesion; whereas most commonn benign lesion was mucinous cystadenoma . Serous cystadenocarcinoma was the commonest malignant lesion. 

Conclusion: Ovaries can be affected by variety of non-neoplastic and neoplastic lesions. Good clinical history and physical examination together with USG findings helps in probable diagnosis. Specific diagnosis is based mainly on routine gross and histopathological examination of the specimen. The study of macroscopic and microscopic features of different ovarian tumors enables categorization into morphological type which helps the gynecologists for proper management.

Keywords: Histopathology; Neoplastic Lesions; Non-Neoplastic Lesions; Ovarian Lesions.