Feni River (Bengali: ফেনী নদী Feni Nodi) is a river in the Indian state of Tripura and southeastern Bangladesh. It is a trans-boundary river with an ongoing dispute about water rights. The Feni River originates in South Tripura district and flows through Sabroom town and then enters Bangladesh. Muhuri River, also called Little Feni, from Noakhali District joins it near its mouth.