Titas River is a trans-boundary river of south-eastern Bangladesh. It originates in the state of Tripura in India where it is known as Haora River in Bengali and Saidra in the local Kokborok language. Flowing near Agartala, (India), it enters Bangladesh through Akhaura Upazila in the Brahmanbaria District of Bangladesh, then merges with the Meghna River to the south near Ashuganj. The length of the river is about 98 km. There is another river of the same name which starts as a distributary of the Meghna and flows back into it.