Muling or Muren (simplified Chinese: 穆棱河; traditional Chinese: 穆稜河^[1]; pinyin: Mùlíng Hé) is a river in Northeast China, a left tributary of the Ussuri.

Its length is 577 kilometres (359 mi), and its basin area is approximately 18,500 square kilometres (7,100 sq mi).^[2] Jixi and Hulin are located on Muling River.

The area of the river is known by Sino-Soviet conflict (1929) and battles between Soviet and Kwantung Armies.