Potonggang-guyok is one of the 18 districts, or guyok, and an artificial island of Pyongyang, North Korea. It is best known as the location of the Ryugyong Hotel. It takes its name from the Pothong River, which forms the district's boundary. Potonggang is bordered to the north by Hyongjesan-guyok, to the east by Sosong and Moranbong, to the south by Pyongchon and Chung, and to the west by Mangyongdae-guyok. The district was established by the Pyongyang City People's Committee in October 1960.