|• Total||562 km2 (217 sq mi)|
|Elevation||1,066 m (3,497 ft)|
|• Density||90/km2 (230/sq mi)|
|Time zone||UTC+05:30 (IST)|
|ISO 3166 code||IN-NL|
Longleng district (Pron:/ˈlɒŋˌlɛŋ/) is one of the eleven districts of the Indian state of Nagaland. It is the eighth least populous district in the country (out of 640).The people of that district are known as Phom, they are one of the major tribes of Nagaland. Initially Longleng was under the district administration of Tuensang District but later on it was bifurcated as a separate district in January 2004
Carved out of Tuensang district, Longleng is tenth district of Nagaland. It is bordered by Mon district in the north, Mokokchung district in the west and Tuensang district in the south. The district's headquarters is Longleng, which is at an altitude of about 1,066 m above sea level. Tamlu and Longleng are the major towns in the district. Its main river is Dikhu.
According to the 2011 census Longleng district has a population of 50,484, roughly equal to the nation of Saint Kitts and Nevis. This gives it a ranking of 632nd in India (out of a total of 640). Longleng has a sex ratio of 903 females for every 1000 males, and a literacy rate of 73.1%.
Phom is the main language spoken here.