Introduction: Ovary is one of the commonest organs to be involved in both neoplastic and non-neoplastic lesions in females for all age groups. Most of the ovarian tumours have similar clinical, radiological and morphological presentation,thus making diagnostic modality challenging. The histopathological examinations play a major role in both diagnostic as well as in therapeutic interventions. Objective: In the semiurban population attending the tertiary care centre to determine the following characteristics of ovarian lesions a)The agewise distribution b) Histomorphological patterns.c) Frequency of occurence. Materials and Methods: The present study is a retrospective study done at Trichy SRM medical college hospital from January 2019 to January 2021 and includes 640 cases of ovarian lesions. Clinical and Histopathological details were recorded, analysed and compiled. Results: Total gynaecological specimens received in the Department of pathology, during this period of study was 1200.Out of these ovarian specimen were 640.Among 640 cases, 345 cases(54.1%) were Non-neoplastic and 295 cases(46.1) were neoplastic. The age group ranges from 10 to 70 yrs with 4th decade being the commonest age group involved.Among the Non-neoplastic lesions, follicular cysts (42.7%) were the commonest and found frequently being unilateral with left side involvement. Among the neoplastic lesions, serous cystadenoma (80 cases) is the commonest benign neoplasm and serous cystadenocarcinoma (16 cases) is the commonest malignant neoplasm. Conclusion: Histopathological evaluation is mandatry to validate the clinical and radiological diagnosis and categorization of ovarian lesions for effective treatment and patient care.