Kaptai Upazila

Kaptai (Bengali: কাপ্তাই) is an Upazila of Rangamati District in the Division of Chittagong, Bangladesh. The name of the Kaptai was derived from the Tripuri word "Kaptetoima". It is said that in the past days, the riverine was so wild and full of tropical flora and fauna. A huge amount of several verities of canes used to be found throughout the course of the river that flows from the south, upper ridge, and the river makes its estuary into the Kainsa Khyong (Karnafuli River).

Notable landmarks are the Karnaphuli Hydroelectric Power Station, the only Hydroelectric power plant of Bangladesh. The Kaptai Dam, built for this purpose on the Karnaphuli River, created the Kaptai Lake, the largest man-made dam in Bangladesh.