Cystic hygroma, or cystic lymphangioma, is a multilocular cystic tumor of a benign neoplastic nature which have a lymphatic origin by congenital defect of lymphatic vessel and whose space is lined with single layer of endothelium, containing serous or serosangreinous fluid. Most often it occurs at birth of early in life. They usually occur in cervical region, axilla, mediastinum, retroperitoneal space, pelvis and groin. The limitation of cystic hygroma solely to the region of the parotid gland is rare. Recently the authors had experienced a case of huge cystic hygroma of the parotid gland. The patient, 11 month old male infant, was admitted because of rapidly enlarging huge cystic mass of left parotid area present since birth. The tumor mass was removed by total parotidectomy with preservation of facial nerve and followed up over a year with no evidence of recurrence.