Lymphangiomas of the ovary are unusual benign tumours characterised by proliferation of lymphatic channels, composed of cystic spaces lined by a single layer of endothelial cells. We present a case of 61-year-old woman who presented with complaints of pain abdomen. Investigations revealed a large left ovarian multiseptate multiloculated cystic mass extending to pelvis, abdominal cavity and infraumbilical region likely neoplastic. Total abdominal hysterectomy with bilateral salpingo-oophorectomy was performed suspecting malignancy. Histopathological examination revealed an ovarian lymphangioma. Patient was disease free 1 year post-surgery. Ovarian cystic lymphangiomas must be included in the differential diagnosis of cystic ovarian masses and long term follow up is suggested to exclude a possibility of malignant transformation.