Tongyeong, city and port, South Gyeongsang do (province), southeastern South Korea. The city was created in 1995 when Chungmu city was combined with Tongyeong county. Until it was made a municipality in 1955, Chungmu was called Tongyeong, deriving its name from Tongjeyeong, which in Old Korean means “Headquarters.”
The port’s deep water and nearby large islands (such as Geoje, Hansan, and Mireuk), which screen the winds and waves, have made it a good harbor from early times. During the Joseon (Yi) dynasty (1392–1910) it was the headquarters of the Korean navy. Modern Tongyeong is a rail junction and port of call for shipping lines. The city’s principal economic activity is fishing, which is supported by the manufacture of marine products and by canning, shipbuilding, and net making. The city is also famous for its traditional lacquerwork inlaid with mother-of-pearl. The cultivation of pearl shellfish began in 1964. Tongyeong has many historical remains, and Hallyeohaesang National Park (1968), South Korea’s first marine national park, which includes islands as well as mainland areas, is located nearby. Pop. (2020) 127,984.