Sungai Kelaboran is a small river in Kelantan. It flows through a largely paddy growing part of the state, where it is canalised, and is one of a network of irrigation canals. The river gives its name to the village of Kampung Kelaboran, which is in Jajahan Tumpat.
Sungai Kelaboran flows into Sungai Peng Nangka, just before the latter's estuary to the South China Sea.