The Keriau or Krio River is a tributary of the Pawan River in West Kalimantan, Indonesia.
The Krio River rapids are reached by starting from Pontianak in the direction of Ketapang by speedboat for six hours, then a four-hour trip in a smaller boat.
The upper course of the river was the location of the Ulu Aik Kingdom (est. around 1700), later renamed Hulu Aik.