The Kashima Rinkai Railway Ōarai Kashima Line (鹿島臨海鉄道大洗鹿島線, Kashima Rinkai Tetsudō Ōarai Kashima-sen) is a 53.0 km Japanese railway line in Ibaraki Prefecture, which connects Mito Station in Mito with Kashima Soccer Stadium Station in Kashima. It is owned and run by the third-sector railway operating company Kashima Rinkai Railway (KRT).