Two cases of skull metastasis from thyroid carcinoma are presented. The one case shows multiple involvement in the skull base with sphenoid sinus, frontal bone, and rib. The other case is solitary extensive involvement to the right parietal bone. The folicular caroinoma of the thyroid shows a strong tendency toward vascular invasion and dissemination through blood stream to the lumgs, bones, liver, brain, and other distant sites. The sternum, the vertebrae, and the pelvis are the most common sites in bone metastasis of thyroid carcinoma, followed by the femur, shoulder girdle, skull, and rib. Metastatic caroinoma to the skull bases, including sphenoid sinus is extremely rare. Authors experienced recently 2 cases of metastatic carcionoma of the thyroid to the skull and report with review of literature.