The Thega River (Thega Khāl, Kawrpui Lui or Kawrpui River) is a river lying mostly between eastern Bangladesh and Mizoram, India. The Thega River flows northwards and exits into the Karnaphuli River at 22°52′43″N 92°26′52″E / 22.87861°N 92.44778°E. It is one of the main tributaries of the Karnafuli.