Introduction: Teratoma are most common germ cell tumor of the ovary. There are various histological types of teratoma and clinically they present with various behavior. The aim of this study is to determine the various morphological pattern and its clinical presentation. Materials and Methods: This is Descriptive study for a period of 4 years from January 2012 to December  2015 at our tertiary care hospital. It consist of total 133 cases of ovarian neoplasm which were surgically removed. Results: A total of 133 cases of ovarian neoplasm were included out of which 24 cases were of ovarian teratoma. In this 22 cases were benign cystic /solid teratomas, 11 case was malignant teratoma and 1 case was of strauma ovari. Out of 22 cases mature teratoma, 21 cases were cystic type and 1 case was of solid type. The cases had dull pelvic pain / dragging discomfort as a common clinical complain. Right sided ovary was involved commonly (64%). The tumor size ranges from 6 cm to 18 cms. The age range in this study was from 12 to 75 years. Conclusion: This study shows mature cystic teratoma are common type of ovarian teratoma (88.6%). Although immature (malignant) and other types are rare, histopathological study play important role in final diagnosis and management of patient.