Lunglei district is one of the eight districts of Mizoram state in India. As of 2011 it is the second most populous district in the state, after Aizawl. It is also the largest district in Mizoram with an area of 4,536 km2(1,765 sq mi).
The district is named after its headquarters, Lunglei. Lunglei, sometimes spelled Lungleh, in Mizo means a bridge of rock. It derived its name from a bridge like rock found in the riverine area around the Nghasih, a small tributary of the river Tlawng.