A 42 year old male patient was admitted to our clinic with complaints of pain, tenderness and mass on the xyphoid process. Radiologic findings indicated benign pathologies. In the follow up, growth in the mass was investigated and surgical exicion was performed. Histopathologic investigation revealed the diagnosis of osteochondroma. Here we report an extremely rare chest wall tumor and different localisation which was an osteochondroma in the xyphoid process.