The Kelantan River (named Sungai Kelantan in Malay language) is the major river in Kelantan, Malaysia. It drains a catchment area of about 11900 km² in north-east Malaysia including part of the Taman Negara National Park, and flows northwards into the South China Sea. The rainfall over the area varies between 0 mm in the dry season (March–May) to 1750 mm in the monsoon season (November–January).