Siaha District is one of the eleven districts of Mizoram state in India. The district is bounded on the northwest by Lunglei district, on the north and west by Lawngtlai District and on the south and east by Myanmar. The district occupies an area of 1399.9 km2. Siaha town is the administrative headquarters of the Mara Autonomous District Council. The population had decreased from 60,823 (in 2001 census) to 56,574 (in 2011 census). It is the least populous district of Mizoram (out of 8). From Wikipedia