Peripheral ossifying fibroma (POF) is a reactive inflammatory gingival hyperplasia which shows area of calcification or ossification. It is a non-neoplastic entity of gingiva. The etiology and pathogenesis of POF are yet not clear, but hypothesized as a proliferative reaction originating from the periodontal ligament, as a result of irritating agents such as dental calculus, plaque, orthodontic appliances, and overhanging restorations. The clinical presentation as mass and radiographic presentation of soft tissue calcification may lead to misclassi?cation; however the histologic appearance is diagnostic. We are presenting a case of peripheral ossifying fibroma in a 48 year old female who reported to us with painless growth on upper right gum region since two months.