Ryonggang County is a county in South P'yŏngan province, North Korea. It is administered as a part of Namp'o Special City. It is famous for its local apples.

Ryonggang-gun is divided into one town (ŭp) and 10 villages (ri):

Ryonggang-ŭp (룡강읍; 龍岡邑) Aewŏl-li (애원리; 愛院里) Husal-li (후산리; 後山里) Okto-ri (옥도리; 玉桃里) P'osŏng-ri (포성리; 浦成里) Ripsong-ri (립송리; 立松里) Ryongho-ri (룡호리; 龍湖里) Ryonghŭng-ri (룡흥리; 龍興里) Samhwa-ri (삼화리; 三和里) Sŏngam-ri (성암리; 城岩里) Yanggong-ri (양곡리; 陽谷里)

Ryonggang County is served by the P'yŏngnam and Ryonggang lines of the Korean State Railway.

• Subdivisions of North Korea
• Geography of North Korea

• Media related to Ryonggang at Wikimedia Commons
• Map of Nyongbyon, in Korean