A patient with galactorrhea, amenorrhea, and hyperprolactinemia caused by a dermoid tumor of the pituitary gland is presented. The patient had a prior history of an ovarian dermoid tumor. The pathology of dermoid tumors is discussed along with the management of pituitary tumor-associated hyperprolactinemia. This is the first reported case of an intracranial and an ovarian dermoid tumor occurring in the same patient.