The is a Class A river that flows from Gifu Prefecture to Toyama Prefecture in Japan. The upper reaches of the river in Gifu are called the Miya River. It is in length and has a watershed of .
Etymology
The official name for the river is "Jinzu Gawa" (written じんづうがわ (Jinzū-gawa or Jindzū-gawa)) according to the Geospatial Information Authority of Japan and Japan Coast Guard.