Pyeonghae is a South Korean town. It is administered as part of Uljin County in North Gyeongsang Province.

Pyeonghae's name means "Peaceful Sea(s)". It appears in 19th-century sources as "Pingai",^[1] "Pingai Harbor",^[2] and "Ping-hai Harbor".^[3]

Pyeonghae lies on the north bank of the Namdae (南大川, "Southern Great River"), about a mile inland from its confluence with the Sea of Japan^[4] on the eastern shore of the Korean Peninsula. Its harbor was formed by a conical island, which sheltered an anchorage in the Namdae estuary.^[3]

During the 19th century, Pyeonghae was reckoned one of the primary harbors on Korea's eastern shore.^[1]

Pyeonghae Village (Pyeonghae-ri) was officially promoted to town status on 1 December 1980.

• List of towns in South Korea

• "Corea" , Encyclopædia Britannica, vol. VI (9th ed.), New York: Charles Scribner's Sons, 1878, pp. 390–394.
• "P'yonghae-Ri", Korea 1:50,000, Ser. L751, Washington: Army Map Service, 1945.
• King, John W. (1861), The China Pilot: The Coasts of China, Korea, and Tartary..., London: J.D. Potter for the Hydrographic Office of the Admiralty.