Oro Bay is a bay in Oro Province, Papua New Guinea, located 15 miles (24 km) southeast of Buna. The bay is located within the larger Dyke Ackland Bay. A port is operated by PNG Ports Corporation Limited with limited wharf facilities, located at 8°53′47″S 148°29′39″E / 8.89639°S 148.49417°E.[1]