Kumai is a port in Central Kalimantan province in Indonesia, on the island of Borneo. It lies on the Kumai River. Kumai was once part of the Kutaringin Monarchy. It was originally led by Pangeran Bendahara, who later gave Kumai to Muhammad Cik, Kumai's village leader. Cik then gave his position to Amsar, who was chosen to be regent of Kumai.