The Pothonggang Canal (Pot'onggang Canal, Potonggang Unha) is a river in North Korea. It flows through the capital Pyongyang and is a tributary of the Pothong River. Prior to 1946, the canal was part of the Pothong River. That year, the Pothong River Improvement Project separated the Canal.^[1]

Today, the canal is home to a park, the Potong River Pleasure Ground. Since 2013, the USS Pueblo, a US Navy vessel captured by North Korea in 1968, is moored in the canal, where it serves as a museum ship.