Haiphong, city and seaport, northern Vietnam, on the delta of the Red River, near the Gulf of Tonkin. The port has modern facilities for handling waterborne freight and is visited by ships from various countries. Haiphong is linked to Hanoi by rail and to other inland points by roads and waterways. The chief industrial enterprises in and near the city include zinc and coal mines. Certain industrial and transportation facilities in and near the city were damaged during the Vietnam War. Population (1989) 1,447,523.
