Ovarian carcinoid tumors which are generally uncommon can be primary or metastatic and are usually related with mature cystic teratoma. The main treatment method for ovarian carcinoid tumors is surgery. In this care report, we presented an unusual patient with carcinoid tumor originating from mature cystic teratoma in a 19- year-old young woman admitted with the complaint of abdominal pain. The patient underwent bilateral cystectomy and received no further treatment. Ovarian carcinoid tumor originating from mature cystic teratoma is an unusual condition in young women like in our case and generally has a good prognosis if it is in the early stage.