Boryeong is a city in South Chungcheong Province, South Korea. It is located at 36°20′N 126°37′E / 36.333, 126.617, on the coast of the Yellow Sea. It lies on the Janghang Line railroad, which connects it to Seoul via the Gyeongbu Line. It is also connected to the Seohaean Expressway. Boryeong is known around Korea for its beaches, particularly Daecheon Beach, and its annual mud festival around July, Boryeong Mud Festival. The city's beach-mud is widely touted for its cosmetic properties. As elsewhere along the southwest coast of the Korean peninsula, there are numerous small islands, many of which are connected by ferry to Daecheon Port.
Boryeong gained its present boundaries in 1995, with the merger of Boryeong-gun and Daecheon City. Previously, the 2 cities had been separated in 1986, and before that time had been united under the name Boryeong City (Boryeong-gun) since the Joseon Dynasty.