Hongcheon (Hongcheon-gun) is a county and city in Gangwon Province, South Korea. The city lies on the northern bank of the Hongcheon River, southeast of Chuncheon. The terrain of the county is mainly mountainous and contains hot springs in the Hongcheong River valley. The county produces ginseng, maize, and vegetables. As of 2012 the county had a population of 70,401 people in 29,894 households.

Gangwon State is a Special Self-Governing Province of South Korea and the least densely populated subdivision of the country. Gangwon is one of the three provinces in South Korea with special self-governing status, the others being Jeju Province and Jeonbuk State. On the east bound by the East Sea, it borders Gyeonggi Province to its west, North Gyeongsang Province and North Chungcheong Province to its south, and the Military Demarcation Line to the north, separating it from North Korea's Kangwŏn Province. Before the division of Korea in 1945 Gangwon and Kangwŏn Provinces formed a single province.