A case of Leydig cell virilizing tumor of the ovary in a 68 year old woman, with clinical signs of virilization, clitoromegaly and androgenic alopecia is described. An RMN of encephalon and an abdominal ultrasound were normal. Following total abdominal hysterectomy and bilateral salpingo-oophorectomy, the patient had regression of hirsutism, and plasma testosterone dropped to normal level.