The Kaladan River (Burmese: ကုလားတန်မြစ်, pronounced [kəládàɴ mjɪʔ]; also Beino, Bieno Boinu, Tuipui, and Kolodyne) is a river in eastern Mizoram State of India, and in Chin State and Rakhine State of western Myanmar. It forms the international border between India and Burma between 22° 47′ 10" N (where its tributary, the Tyao River, joins it) and 22° 11′ 06" N.